author Lieselotte Berg...[et al.] author Lawrence Bartonn...[et al.] author Marie-Louise Gerwien...[et al.] author John H. Forsberg...[et al.] authors Heinz Becker...[et al.] author Werner Behrendt...[et al.] author Slegfried H. Eberte...[et al.] authors Luis F. Diaz...[et al.] authors Kenneth S. Dodgson...[et al.]