NIKITINA, G M [Certain characteristics of extinction of orientation and conditioned defense reflexes in puppies in ontogenesis]. [electronic resource] - Zhurnal vysshei nervnoi deiatelnosti imeni I P Pavlova - 912-21 p. digital Publication Type: Journal Article ISSN: 0044-4677 Subjects--Topical Terms: AnimalsConditioning, ClassicalDogsFemaleNervous System Physiological PhenomenaOrientationReflex