Agoston, Karoly; Kerekgyarto, Janos; Hajko, Janos; Batta, Gyula; Lefeber, Dirk J.; Kamerling, Johannis P.; Vliegenthart, Johannes F. G. Chemistry - A European Journal, 2002, vol. 8, # 1 p. 151 - 161 doi: 10.1002/1521-3765(20020104)8:1<151::AID-CHEM151>3.0.CO;2-C