| Author | Popularity |
| Keck, Cornelia M. (Prof. Dr.) |
5 |
| Klein, Thomas |
5 |
| Kleinschmidt, Christoph Ludwig (Hrsg.) |
5 |
| Klenk, Hans-Dieter (Prof. Dr.) |
5 |
| Klingenspor, Martin (Dr.) |
5 |
| Kraus, Florian (Prof. Dr.) |
5 |
| Kroll, Peter (Prof. Dr.) |
5 |
| Krähwinkel, Esther |
5 |
| Köhler, Ulrich (Prof. Dr.) |
5 |
| Kükelhan, Pirmin |
5 |
| Lewis, James R. |
5 |
| Mandic, Robert (Dr.) |
5 |
| Maurer, Susanne (Prof. Dr.) |
5 |
| Müller, Heinrich |
5 |
| Müller, Rolf (Prof. Dr.) |
5 |
| Münzel, Mark (Prof. Dr.) |
5 |
| Nicole, Pierre |
5 |
| Nietzsche, Friedrich |
5 |
| Opp, Christian (Prof. Dr.) |
5 |
| Petersen, Johann Wilhelm |
5 |