Sierra, Miguel A An Entry to Mixed NHC-Fischer Carbene Complexes and Zwitterionic Group 6 Metal Alkenyls. [electronic resource] - Chemistry (Weinheim an der Bergstrasse, Germany) Sep 2016 - 13521-31 p. digital Publication Type: Journal Article ISSN: 1521-3765 Standard No.: 10.1002/chem.201601735 doi