ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, vol. 47, no. 7, page. 1269 - 1271, 2008-01
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, vol. 47, no. 11, page. 2046 - 2048, 2008-01
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, vol. 47, no. 42, page. 8030 - 8032, 2008-01