- document
- Schepers, J.A. (author) journal article 1924
- document
- journal article 1924
- document
- journal article 1924
- document
- Hogner, Einar (author) journal article 1923
- document
- journal article 1923
- document
- journal article 1923
- document
- journal article 1922
- document
- journal article 1922
- document
- journal article 1921
- document
- journal article 1921
- document
- journal article 1920
- document
- journal article 1920
- document
- journal article 1919
- document
- journal article 1919
- document
- Schaffran, K. (author) journal article 1915
- document
- Isherwood, J.W. (author) journal article 1910
- document
- van Waveren, L.J.K. (author) journal article 1910
- document
- Havelock, Th.H. (author) journal article 1909
- document
- Hamilton, William (author) journal article 1909