edited by E.I. Bitsakis and C.A. Nicolaides. edited by A. N. Nicolaides. edited by E.H. Mamdani, B.R. Gaines. edited by E. Bilgen, K.G.T. Hollands. edited by J. D. Williams and A. M. Geddes. edited by E.R. Pike and L.A. Lugiato. edited by Gianni Astarita and Luigi Nicolais. edited by C.A. Brandly and C.E. Cornelius. edited by E. Alarcon, C. A. Brebbia. edited by E. C. Subbarao, W. E. Wallace.