| Author | Popularity |
| International Federation of Agricultural Producers, 75 - Paris (France) eng |
2 |
| Delaunay, H. |
1 |
| FAO, Rome (Italy) eng |
1 |
| IEC Prod. and Mktg. Conf. eng 16-21 Sep 1978 Rio de Janeiro (Brazil) 12349 |
1 |
| International Egg Commission, London (United Kingdom) eng |
1 |
| Schmit, L. von |
1 |
| Todd, H.G.S. |
1 |
| Winfridsson, O. |
1 |
