| Verfasser | Häufigkeit |
| Bos, Wilfried 1953- |
4 |
| Hasselhorn, Johannes |
4 |
| Holtappels, Heinz Günter 1954- |
4 |
| McElvany, Nele 1977- |
4 |
| Ohle-Peters, Annika |
4 |
| Agee, James 1909-1955 |
2 |
| Bos, Jerry |
2 |
| Carruth, Evelyn |
2 |
| Chapin, Billy |
2 |
| Cortez, Stanley 1908-1997 |
2 |
| Dortmunder Symposium der Empirischen Bildungsforschung Dortmund |
2 |
| Gish, Lillian 1893-1993 |
2 |
| Graves, Peter |
2 |
| Grubb, Davis 1919-1980 |
2 |
| Laughton, Charles 1899-1962 |
2 |
| Mitchum, Robert 1917-1997 |
2 |
| Schumann, Walter |
2 |
| Varden, Evelyn |
2 |
| Winters, Shelley 1922-2006 |
2 |
| Andriessen, Willem 1887-1964 |
1 |