Καλογήρου, Γ., Vonortas, N. S., Ιωαννίδης, Σ., Καλογήρου, Γ. Δ., Βονόρτας, Ν. Σ., & Ιωαννίδης, Σ. Γ. (2004). European collaboration in research and development: Business strategy and public policy ; edited by Yannis Calogirou, Nicholas S. Vonortas, Stavros Ioannides. Cheltenham: Edward Elgar.

Καλογήρου, Γιάννης, Nicholas S. Vonortas, Σταύρος Ιωαννίδης, Γιάννης Δ Καλογήρου, Νικόλαος Σ. Βονόρτας, and Σταύρος Γεν. Ιωαννίδης. European Collaboration in Research and Development: Business Strategy and Public Policy ; Edited By Yannis Calogirou, Nicholas S. Vonortas, Stavros Ioannides. Cheltenham: Edward Elgar, 2004.

Καλογήρου, Γιάννης, et al. European Collaboration in Research and Development: Business Strategy and Public Policy ; Edited By Yannis Calogirou, Nicholas S. Vonortas, Stavros Ioannides. Cheltenham: Edward Elgar, 2004.