TY - JOUR AU - Spies, P; Schwendemann, S; Lange, S; Kehr, G; Fröhlich, R; Erker, G JO - Angew. Chem. Int. Ed. VL - 47 PY - 2008 DO - 10.1002/anie.200801432 L3 - PubMed-ID: 18726976 SP - 7543 ER -