Journal article (2001) - GW Michel (author) , ? Yue Qou Yu (author) , ? Sheng Yuan Zhu (author) , C Reigber (author) , Marius Becker (author) , E Reinhart (author) , W.J.F. Simons (author) , BAC Ambrosius (author) , C. Vigny (author) , G.B. More Authors (author)