Khan, Noshena; Al-Abed, Yousef; Kohlbau, Hans-Juergen; Latif-Ansari, Farzana; Kowollik, Wolfgang; Voelter, Wolfgang Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences, 1996 , vol. 51, # 12 p. 1781 - 1790