4
Published 1882
Electronic
5
Published 1882
Electronic
6
Published 1882
Electronic
7
by Petersson, Vilhelm.
Published 1886
Book
8
by Bäcklin, Gottfrid.
Published 1890
Book
9
by Poincaré, Henri, 1854-1912
Published 1911
Book
10
Published 1912
Book