“The pricing of interconnections between telecommunications companies: Theoretical analysis, international practice and the Greek reality” (Research partnership between LIEE/NTUA-OPA), (Scientific leader for the team of NTUA, with Professor Th. Lianos of OPA as general scientific leader of the project), National Telecommunications Commission, 1996-1997.

In particular, the LIEE/NTUA developed for the first time in Greece a bottom-up technical and economic model for the determination of interconnection charges.