Citation: S. Parua et al., EFFECT OF COLD-EXPOSURE ON TESTICULAR DELTA(5)-3-BETA-HYDROXYSTEROID-DEHYDROGENASE AND 17-BETA-HYDROXYSTEROID-DEHYDROGENASE ACTIVITIES AND PLASMA-LEVELS OF TESTOSTERONE IN TOAD (BUFO-MELANOSTICTUS) IN BREEDINGAND HIBERNATING SEASON - DURATION-DEPENDENT RESPONSE, Andrologia, 30(2), 1998, pp. 105-108