| Author | Popularity |
|---|---|
| Zollitsch, W. | 5 |
| Tegegne, Azage | 4 |
| Wurzinger, Maria | 4 |
| Alemayehu, Y.A. | 3 |
| Ayenew, Y.A. | 1 |
| Biavati, B. | 1 |
| Borgsteede, F.H.M. | 1 |
| Davies, D. | 1 |
| Klocke, P. | 1 |
| Maurer, V. | 1 |
| Mejer, H.E. | 1 |
| Modesto, M. | 1 |
| Nagel, P. | 1 |
| Nicholas, P. | 1 |
| Spoolder, H.A.M. | 1 |
| Strozzi, G.P. | 1 |
| Sundrum, A. | 1 |
| Thamsborg, S.M. | 1 |
| Vermeer, H.M. | 1 |
| Wagenaar, J. | 1 |
