edited by E.R. Pike and L.A. Lugiato. edited by R. M. A. Lieth. edited by M.M. Lehman, L.A. Belady. edited by E. G. Derouane and A. A. Lucas. edited by E.I. Bitsakis and C.A. Nicolaides. edited by E. Buncel, T. Durst. edited by J.R. Piggott. edited by R. P. Gupta. edited by G. Ferrate and E.A. Puente. edited by E.H. Mamdani, B.R. Gaines.