| Verfasser | Häufigkeit |
| Tracy, Spencer 1900-1967 |
33 |
| Kidder, Tracy 1945- |
21 |
| Tracy, Spencer |
19 |
| Hepburn, Katharine 1907-2003 |
12 |
| Tracy, Kathleen |
12 |
| Hepburn, Katharine |
9 |
| Krueger, Tracy C. |
9 |
| Krashen, Stephen D. 1941- |
8 |
| Tracy, Karen |
8 |
| Kramer, Stanley 1913-2001 |
7 |
| Smith, Tracy K. 1972- |
7 |
| Terrell, Tracy D. 1943-1991 |
7 |
| Achenbach, Stephan |
6 |
| Budoff, Matthew J. |
6 |
| Cademartiri, Filippo |
6 |
| Callister, Tracy Q. |
6 |
| Chang, Hyuk-Jae |
6 |
| Daniels, William |
6 |
| Delago, Augustin |
6 |
| Feuchtner, Gudrun |
6 |