| Verfasser | Häufigkeit |
| Levkov, Zlatko 1972- |
7 |
| Levkov, Ėrnst A. |
6 |
| Lange-Bertalot, Horst 1936- |
4 |
| Krammer, Kurt |
3 |
| Eppel, Dieter |
2 |
| Jovanovska, Elena 1985- |
2 |
| Levine, Ross 1960- |
2 |
| Levkov, Alexey |
2 |
| Levkov, Lubomir |
2 |
| Werum, Marcus |
2 |
| Beck, Thorsten 1967- |
1 |
| Califana, Anthony L. |
1 |
| Cvetkoska, Aleksandra |
1 |
| Fuhrmann, Andre |
1 |
| Fuhrmann, André |
1 |
| Gorelik, Zalman Abramovič |
1 |
| Graßl, Hartmut |
1 |
| Graßl, Hartmut 1940- |
1 |
| Kuznecov, Valerij A. 1906-1985 |
1 |
| Levkov, Ivan |
1 |