TY - JOUR AU - Kumar, K; Michalik, D; Castro, I G; Tillack, A; Zapf, A; Arlt, M; Heinrich, T; Böttcher, H; Beller, M JO - Chem. Eur. J. VL - 10 PY - 2004 DO - 10.1002/chem.200305327 L3 - PubMed-ID: 14767940 SP - 746 ER -