Simon Bernd, Sattler Michael
Structural & Computational Biology, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany.
Angew Chem Int Ed Engl. 2002 Feb 1;41(3):437-40. doi: 10.1002/1521-3773(20020201)41:3<437::aid-anie437>3.0.co;2-3.