• The UNIDROIT Principles in Practice: Caselaw and Bibliography on the UNIDROIT Principles of International Commercial Contracts (Transnational Publishers, 2002)

• Unilex - International Case Law and Bibliography on the U.N. Convention on Contracts for the International Sales of Goods (latest release 2001) and on the UNIDROIT Principles of International Commercial Contracts (2001)

• An International Restatement of Contract Law (The UNIDROIT Principles of International Commercial Contracts) (2d ed. 1997)Numerous articles in the field of international trade law

• The UNIDROIT Principles in Practice: Caselaw and Bibliography on the UNIDROIT Principles of International Commercial Contracts (Transnational Publishers, 2002)

• Unilex - International Case Law and Bibliography on the U.N. Convention on Contracts for the International Sales of Goods (latest release 2001) and on the UNIDROIT Principles of International Commercial Contracts (2001)

• An International Restatement of Contract Law (The UNIDROIT Principles of International Commercial Contracts) (2d ed. 1997) §§Numerous articles in the field of international trade law