4
5
Author: Jensen, E. 1841-1927.
Published 1903
Record Source: Published Materials
Book
6
8
Author: Kirkeberg, O. L.
Published 1900
Record Source: Published Materials
Book
11
Author: Johnsen, E. Kr. 1863-1923.
Published 1913
Record Source: Published Materials
Book
12
Author: Birkeland, K. B. 1857-1925.
Published 1892
Record Source: Published Materials
Book
13
Published 1915
Record Source: Published Materials
Journal