Gottfried Kothe ; translated by D. J. H. Garling. Gottfried Glockner ; [translated by Bernhardt Simon]. written by Bonnie ; translated by Ma Li & Lu Danqing. Helmut Kratzsch ; translated by R. F. S. Fleming. Otfried Madelung ; translated by B.C. Taylor. Pierre Lena ; translated by A.R.King. Ritchie Robertson ;translated by Hu Baoping.