Petridis, Konstantinos, : Operational research in the digital era - ICT challenges : 6th International Symposium and 28th National Conference on Operational Research, Thessaloniki, Greece, June 2017 / Angela Sifaleras, Konstantinos Petridis, editors.
Petridis, M. : Applications and innovations in intelligent systems XV [electronic resource] : proceedings of AI-2007, the twenty-seventh SGAI International Conference on Innovative Techniques and Applications of Artificial Intelligence / Richard Ellis, Tony Allen and Miltos Petridis, editors.
Petridis, Nicholas. : Harmonic analysis, Iraklion 1978 : proceedings of a conference held at the University of Crete, Iraklion, Greece, July 1978 / edited by N. Petridis, S.K. Pichorides, and N. Varopoulos.
Petrie, Andrea. : Child care in the 90's : responding to community needs in Australia : report of research project National utilisation trends in family day care for the National Family Day Care Council / Andrea Petrie.
Petrie, Anne. : CD-ROM [electronic resource] : celebrating George Enescu.
Petrie, Arthur H. K. : The vegetation of the Kosciusko Plateau / by John McLuckie and Arthur H.K.Petrie.