1. Austwick PKC, Copland JW: Swamp cancer. Nature. 250:84, 1974.
2. Avis JA: Hyphomycosis destruens-equi. Veeartsenijkundige Bld Ned Indië 8:350?374, 1901.
3. Berrocal A, Solis A, Avalos E: Clinica y epidemiologia de la zigomicosis en Costa Rica. Resumenes del II Congreso Nacional de Medicina Veterinaria. San Jose, Costa Rica, 1981, p 22.
4. Bitting AW: Leeches or leeching. Florida University AES Bulletin 25:37?48, 1984.
5. Bridges CH, Emmons CW: A phycomycosis of horse caused by Hyphomyces destruens. J Am Vet Med Assoc 138:579?589, 1961.