Keglevich, Gyorgy; Szelke, Helga; Balint, Agnes; Imre, Timea; Ludanyi, Krisztina; Nagy, Zoltan; Hanusz, Miklos; Simon, Kalman; Harmat, Veronika; Toke, Laszlo
Heteroatom Chemistry, 2003 , vol. 14, # 5 p. 443 - 451