V. Kohlschütter
发表
V. Kohlschütter,
P. Haenni,
1919
.
V. Kohlschütter,
J. Tüscher,
1920
.
V. Kohlschütter,
1919
.
V. Kohlschütter,
1927
.
V. Kohlschütter,
1919
.
V. Kohlschütter,
1913
.
V. Kohlschütter,
1930
.