CDRC Vienna
:: The Organizers

pages in this category:


Founding Institutions


IBA       VIAC       


The International Bar Association (IBA) is the world’s leading organization of international legal practitioners, bar associations and law societies with a membership of 55,000 individual lawyers and 206 bar associations and law societies spanning all continents.

The Vienna International Arbitral Centre (VIAC) is the premier international arbitration institution in Central and Eastern Europe. The new Vienna Mediation Rules of VIAC can be downloaded here



Association for the Organization and Promotion of the Vienna Mediation and Negotiation Competition
Registered Association Number 034757894
Stadiongasse 2, 1010 Wien   




Claudia Kück

After having completed her law degree at Bucerius Law School in Hamburg, Germany, which included a semester abroad at Washington University in the U.S., Claudia Kück is currently finalizing her PhD thesis on hybrid dispute resolution mechanisms at the European University Viadrina in Frankfurt/Oder. For her research, she also spent several months at Singapore Management University.

Besides her PhD, Claudia is an IMI-qualified mediator, has published several academic articles on ADR-related topics, and is working as a lecturer for mediation at European University Viadrina and at Hochschule Fresenius in Germany.

While studying, she participated in the Vienna Vis Moot in 2013, where the Bucerius Team reached the quarter-finals. In addition, she took part in the 2014 ICC Mediation Competition where her team reached the semi-finals. She coached several Bucerius teams afterward. Furthermore, she is part of the founding team and has continuously been involved in the organization of the Bucerius Mediation Competition. In 2021, Claudia was also a part of the Vienna Vis Moot organizing team.

Claudia has participated as a mediator and expert assessor in various Mediation and Moot Court Competitions, including the IBA-VIAC CDRC Vienna. During the 2021 edition of CDRC, Claudia was a member of the Online Task Force.


Ilja Weikum 

Ilja Weikum was born in Bishkek, Kyrgyzstan and grew up in Berlin, Germany. He read his bachelor’s degree in Business and Law at the Technical University of Applied Sciences Wildau. Furthermore, he graduated with an LL.M. in Business and Law with a specialization in international business law at his alma mater. During his LL.M. he spent a semester abroad at the Shanghai Jian Qiao University.

He obtained a substantial amount of international mediation and negation experience during his Master studies. Ilja participated in the second edition of the Lex Infinitum competition in Goa, India. With his team, he obtained three awards and got through to the semi-finals.

Moreover, Ilja participated as an expert assessor for several international mediation competitions (e.g. 6th edition NLIU-INADR International Law School Mediation Tournament, 3rd Lex Infinitum, 5th Bucerius Mediation Competition). Ilja has been a member of the volunteering team of the IBA-VIAC CDRC Vienna completion since 2017.


Marcus Bauckmann

Dr. Marcus Bauckmann, LL.M. is a lawyer and commercial mediator from Germany.

As a lawyer Marcus is focused on employment law and corporate law since 2008. He is a member of the board of the regional bar association and also a member of the “Alternative Dispute Resolution” committee at the Federal Bar Association.

Marcus is also working as a commercial mediator since 2012 and obtained his mediation training e.g. at the Program on Negotiation at Harvard Law School. Besides that he is active as a trainer and lecturer for mediation and negotiation e.g. at the Christian-Albrechts-University of Kiel, the Helmut-Schmidt-University of the German Federal Armed Forces in Hamburg and the Philipps-University Marburg.

Marcus has been a judge and mediator in various moot courts and mediation competitions since 2016 and joined CDRC Vienna as an Expert Assessor since 2019 and is a dry member of the director’s team since January 2021.

Organizing COMMITTEE


Claudia Winkler 

Claudia Winkler is a Negotiation Trainer specialized in training lawyers in the art and science of negotiating – with the other side and for more satisfaction with their own clients. An energetic and creative communicator she blends her variety of top legal educations with her international legal and business experience. Claudia received her Master’s and Doctor’s degree in European and International Law from the University of Linz and her LL.M. from Harvard Law School. Her professional experience reaches from law to government, non-for profit, start-up, university and international institutions. She has worked as the ADR development coordinator with the New York International Arbitration Center (NYIAC) during her time as a Fulbright scholar and is a licensed Mediator in New York. She has been the Director of the IBA-VIAC CDRC Vienna Mediation and Negotiation Competition in Vienna since its inception in 2015. As a trainer ( Claudia has worked with law firms, businesses, conferences and universities in the United States, Europe, Africa, Asia and Australia.


Federico Antich (IBA)

Federico Antichgraduated at the School of Law, University of Florence, Italy and earned an LLM in U.S. and Global Business Law at Suffolk University Law School, USA, after having completed postgraduate studies at Harvard Law School, UC Davis, UC Berkeley and at King’s College, UK.

He practices as an Attorney at Law in Florence since 1997. Since 1999 he also practices as a civil and commercial mediator and is currently accredited by several Organizations including the Center for Effective Dispute Resolution (CEDR), the International Mediation Institute (IMI) and has been the first Italian to be inducted as a Distinguished Fellow of the International Academy of Mediators (IAM). He currently serves as President of the Italian Delegation of the Mediation Center for Europe, the Mediterranean and the Middle East (CEM) and as Co-Chair of the Mediation Committee of the International Bar Association (IBA). He is also a Member of the American Bar Association (ABA) – International Section, the Chartered Institute of Arbitrators (MCIArb) and since 2004 he has been involved in teaching the theory and practice of non-contentious dispute resolution, having also received certification as a trainer of trainers in mediation by CEDR, by Mediation Works Inc. Boston (MWI) and as a trainer in higher education by the Derek Bok Center for Teaching and Learning at Harvard University.


Niamh Leinwather (VIAC)

Since 1 January 2022, Niamh Leinwather has taken office as the new Secretary General of the Vienna International Arbitral Centre (VIAC). Of Irish origin, Niamh has both a common and civil law background (Bachelor of Civil Law, University College Dublin, Mag.iur., University of Vienna, Master of European Studies, University of Vienna). She was the first Irish woman to be admitted to the Austrian Bar in 2013 and has over a decade of experience in international dispute resolution at Freshfields Bruckhaus Deringer in Vienna where she acted as both counsel and arbitrator.


Nikolaus Pitkowitz (VIAC)

Nikolaus Pitkowitz is founding partner and head of dispute resolution at Pitkowitz & Partners, Vienna and Vice-President of VIAC. He holds law degrees from the University of Vienna (JD and PhD) and the University of Sankt Gallen, Switzerland (MBL) and is also qualified and certified as a Mediator. Dr. Pitkowitz has been practising law since 1985. His practice, which has always been very international with a strong focus on CEE, initially mainly comprised trans­actional work in the fields of Real Estate and M&A and soon expanded to international dispute resolution. Nikolaus Pitkowitz is considered one of the preeminent Austrian dispute resolution practitioners.


Martin Hauser (IBA)

Martin Hauser

Martin Hauser is a certified mediator in Germany and France. He leads national and international commercial mediations in English, French, and German. Martin has a legal background in intellectual property, IT, licences, distribution, competition, complex industrial projects, and international business law. 

With over 30 years of practice as a business lawyer in commercial litigation, international arbitration, and negotiations, Martin works full-time as a commercial mediator on the resolution of complex and emotional legal conflicts. 

He is accredited with mediation institutions such as ICC Centre for ADR, Paris, CMAP, Paris, WIPO Arbitration and Mediation Center, Geneva, EUCON, Munich, VIAC, Vienna, IFCM/IMI, Paris/The Hague, and listed with the Paris Court of Appeals and CNMA, Paris. 

Martin is Co-Chair of the IBA International Bar Association Mediation Committee. He is a Distinguished Fellow of the IAM, Dallas, and is selected by WWL Who’s Who Legal Mediation. 

Martin is a member of the Munich (Rechtsanwalt) and Paris (avocat honoraire) Bars. 

He practiced from 1988 to 2019 as a founding partner at BMH AVOCATS, Paris. From 1980 to 1983, he was a research fellow in French intellectual property and competition law with the Max-Planck-Institute for Innovation and Competition, Munich. Martin holds degrees of Master of Arts (M.A.) in negotiation and mediation from the European University Viadrina Frankfurt Oder (2015), Master of Comparative Jurisprudence (M.C.J.) from New York University (NYU) (1986), Doctorate in Law (Dr. iur.) from the University of Munich (1983) and law degrees from the Universities of Munich and Freiburg i. Br. (1985, 1979). 


Mary Walker (IBA)

Mary Walker BA Hons LLB, Barrister, has been an ADR practitioner since 1990. During this period, as a member of an independent Bar, Mary has arbitrated, mediated, negotiated, facilitated multi-party, environmental and community disputes, designed dispute resolution systems and provided expert appraisal/expert determinations and facilitated expert panels and provided ombudsman services in respect to thousands of disputes across jurisdictions referred by solicitors, industry and government bodies and corporations, both domestic and international. Amongst other appointments Mary is Chair of the Law Council of Australia Federal Litigation and Dispute Resolution ADR Committee, Chair of the Law Council of Australia International Law Section and Co-Chair of the International Arbitration Committee. Mary is a board member of the Australian Centre for International Commercial Arbitration, Co- -Chair of the International Bar Association Mediation Committee and a member of the International Mediation Institute (IMI) Appraisal Committee. Amongst other appointments Mary was previously a President of the Australian Dispute Resolution Association and a member of the IMI Independent Standards Commission. Mary was awarded the Inaugural Australian Mediator of the Year Award in 2016 by the Australian Disputes Centre, again awarded Mediator of the Year in 2017 and 2018 and was also awarded International Mediator of the Year in 2018 and 2019. Mary was inducted into the Australian ADR Awards Hall of Fame as its Inaugural member in 2019. Mary was sponsored by Harvard to teach mediation with Professor Frank Sander in 1995. Mary is an internationally accredited Mediator and Mediation Advocate with the International Mediation Institute and is an accredited Investor- State Mediator with CEDR, London.