Besides the visiting professorships and faculty memberships, since 1991 he has been intensively lecturing at various Universities and scientific institutions, including:

Asia

China - Beijing: Renmin University (EN); Shanghai: Fudan University (EN); Xiamen University (EN)

India - Mumbai: Foundation for International Taxation (EN)

Russia - Ekaterinburg: Ural State Academy of Law (EN/RU)

Singapore - Singapore Tax Academy (EN)

Europe

Estonia - Ministry of Finance (EN)

Italy - University of Bari; University of Bologna; FU/UL Bolzano/Bozen; European University Institute, University of Florence; University of Lecce; Bocconi University of Milan; Catholic University, Milan; Federico II University of Naples; Parthenope University of Naples; Suor Orsola Benincasa University of Naples; SUN-II University of Naples; University of Palermo; La Sapienza University of Rome; Tor Vergata University of Rome; University of Trento; Venice International University (IT)

Luxembourg - University of Luxembourg (EN)

Netherlands - ITA/IBFD, University of Amsterdam (UvA), University of Maastricht (EN)

Norway - University of Oslo (EN)

Poland - University of Lodz (EN)

Portugal - University of Lisbon, Instituto Superior de Gestão (PT)

Spain - UB University of Barcelona, IEF, University of Santiago de Compostela, University of Valencia (ES)

Switzerland - University of Lausanne and HEC; MAS University of Lausanne, Lausanne (FR)

Sweden - Stockholm School of Economics and University of Uppsala (EN)

Switzerland - University of Lausanne and HEC (FR)

Afrika

South Africa - University of Cape Town, Cape Town (EN)

North America

Canada - Mc Gill University of Montréal (FR/EN)

US - New York University; University of Connecticut (EN)

South America

Argentina -Austral University; UBA University of Buenos Aires (ES)

Brazil - University of Salvador de Bahia, Mackenzie University of Sao Paulo (PT)

Colombia - Universidad del Rosario of Bogotá (ES), Instituto Colombiano de Derecho Tributario (ES)

Uruguay - Universidad de la República of Montevideo (ES)