4
Published 1873
Journal
5
Published 1880
Journal
6
by Schulz K.
Published 1882
Book
7
by Leitschuh, Friedrich
Published 1889
Book
8
by Leitschuh, Friedrich 1837-1898
Published 1889
Book
9
by Leitschuh, Friedrich 1837-1898
Published 1889
Book
12
by Stein, Henri, 1862-1940
Published 1897
Book
14
Published 1925
Electronic
15
Published 1929
Journal