R. Brueckner D.E. Day G.H. Frischat L.D. Pye C.G. Pantano G.H. Sigel Jr. J.M. Stevels M. Tashiro J. Zarzycki
Technische Universit~it, Berlin, FRG University of Missouri-Rolla, MO, USA Technische Universit~it, Clausthal, FRG Alfred University, NY, USA Pennsylvania State University, PA, USA Naval Research Laboratory, Washington, DC, USA Technische Hogeschool, Eindhoven, The Netherlands Kyoto University, Japan CNRS, Montpellier, France