Gueller, Rolf; Binggeli, Alfred; Breu, Volker; Bur, Daniel; Fischli, Walter; Hirth, Georges; Jenny, Christian; Kansy, Manfred; Montavon, Francois; Mueller, Marcel; Oefner, Christian; Stadler, Heinz; Vieira, Eric; Wilhelm, Maurice; Wostl, Wolfgang; Maerki, Hans Peter Bioorganic and Medicinal Chemistry Letters, 1999 , vol. 9, # 10 p. 1403 - 1408