W. Koenigs

发表

W. Koenigs, R. Geigy, 1884 .

W. Koenigs, W. Comstock, 1887 .

W. Koenigs, J. Hoerlin, 1893 .

W. Koenigs, W. Comstock, 1885 .

W. Koenigs, 1903 .

W. Koenigs, A. Feer, 1886 .

W. Koenigs, Emil Erwig, 1889 .

W. Koenigs, J. Hoerlin, 1894 .

W. Koenigs, W. Comstock, 1887 .

W. Koenigs, W. Comstock, 1892 .

W. Koenigs, R. Geigy, 1885 .