| Verfasser | Häufigkeit |
| Knapp, Oliver Ernst-Ludwig 1974- |
3 |
| Thiesing, Christina |
3 |
| Karl, Philipp |
2 |
| Langlais, Robert P. |
2 |
| Langland, Olaf E. |
2 |
| Leonard, Olen E. 1909- |
2 |
| Beckmann, Conrad 1846-1902 |
1 |
| Castañón Rodríguez, Jesús |
1 |
| Clifford, Roy A. |
1 |
| Eguavoen, O. E. L. |
1 |
| García Molina, Emilio Tomás |
1 |
| Hiddemann, Friedrich 1829-1892 |
1 |
| Lau, Otto Emil 1853-1917 |
1 |
| Lindner, Otto E. |
1 |
| Loomis, Charles Price 1905-1995 |
1 |
| Loza Olave, Edmundo |
1 |
| Lüders, Hermann 1836-1908 |
1 |
| Morris, Charles R. |
1 |
| Nortjé, Christoffel J. |
1 |
| Oyadongha, Joyce C. E. |
1 |