Einszporn-Orecka T., 1974. Differences in the eel peripheral blood hematologic parameters associated with papilloma (Papillomatosis anguillarum). Acta Ichthyol. Piscat. 4 (2): 73-82.

As a result of studies on the eel (Anguilla anguilla L.) hematologic parameters, certain characteristic symptoms typical of the “cauliflower disease” (Papillomatosis anguillarum) have been established, both the different stages in tumours′ growth and anatomo-pathological lesions being taken into account.