MATSUZAWA ET AL. 1986 — T. Matsuzawa, T. Asano, K. Kubota, K. Murofushi. Acquisition and generalization of numerical labeling by a chimpanzee // D. M. Taub, F. A. King (eds). Current Perspectives in Primate Social Dynamics. N. Y.: Van Nostrand, 1986. P. 416–430.

McGrew 1987 — W. C. McGrew. Tools to get food: the subsistence of the Tasmanian Aborigines and Tanzanian chimpanzees compared // Journal of Anthropological Research. 1987. Vol. 43. P. 247–258.

McGrew 1992 — W. C. McGrew. Chimpanzee Material Culture: Implications for Human Evolution. Cambridge: Cambridge Univ. Press, 1992.

MEBES 1978 — H. D. Mebes. Pair-specific duetting in the Peach-faced Lovebirds // Naturwissenschaften. 1978. Bd 65. S. 66–67.

MENZEL 1979 — E. W. Jr. Menzel. Communication on object locations in a group of young chimpanzees // The Great Apes. Mento Park, Calif., 1979. P. 359–371.

MENZEL ET AL. 1985 — E. W. Jr. Menzel, E. S. Savage-Rumbaugh, J. Lawson. Chimpanzee (Pan troglodytes) spatial problem solving with the use of mirrors and televised equivalents of mirrors // Journal of Comparative Psychology. 1985. Vol. 99. № 2. P. 211–217.

MENZEL ET AL. 1997 — C. R. Menzel, E. S. Savage-Rumbaugh, E. W. Menzel. Chimpanzee (Pan paniscus) spatial memory and communication in a 20 hectare forest // American Journal of Primatology. 1997. Vol. 41.

P. 134–150.

MILES 1983 — H. L. Miles. Apes and language: The search for communicative competence // J. de Luce, H. T. Wilder (eds). Language in Primates: Perspectives and Implications. N. Y.:

Springer, 1983. P. 25–43.

MILES 1990 — H. L. Miles. The cognitive foundations for reference in a signing orangutan // S. T. Parker, K. R. Gibson (eds). «Language» and Intelligence in Monkeys and Apes: Comparative Developmental Perspectives. Cambridge: Cambridge Univ. Press, 1990. P. 511–539.

MILES 1997 — H. L. Miles. Anthropomorphism, apes and language // R. W. Mitchell, N. S. Thompson, & H. L. Miles (eds). Anthropomorphism, anecdotes, and animals. Albany, NY: State Univ. of New York, 1997. P. 383–404.

MITANI, BRANDT 1994 — J. C. Mitani, K. L. Brandt. Social factors influence the acoustic variability in the long-distance calls of male chimpanzee // Ethology. 1994. Vol. 96. P. 233–252.

MITCHELL ET AL. 1997 — R. W. Mitchell et al. (eds). Anthropomorphism, Anecdotes, and Animals. Albany, NY: State Univ. of New York, 1997.

MOWRER 1958 — O. H. Mowrer. Hearing and speaking: An analysis of language learning // Journal of Speech and Hearing Disorders. 1958. Vol. 23. P. 143–152.

MUROFUSHI 1997 — K. Murofushi. Numerical matching behavior by chimpanzee (Pan troglodytes): Subitizing and analogue magnitude estimation // Japanese Psychological Research. 1997. Vol. 39. № 3. P. 140–153.

NOTTEBOHM 1970 — F. Nottebohm. Ontogeny of bird song // Science.

1970. № 167. P. 950–956.

PARKER, Gibson 1977 — S. T. Parker, K. R. Gibson. Object manipulation, tool-use and sensory motor intelligence as feeding adaptations in cebus monkeys and great apes // Journal of Human Evolution. 1977. Vol. 6. № 7. P. 623–641.

PATE, Rumbaugh 1983 — J. L. Pate, D. Rumbaugh. The language-like behavior of Lana chimpanzee: Is it merely discrimination and paired-associate learning? // Animal Learning and Behavior. 1983. Vol. 11. P. 134–138.

PATTERSON 1978 — F. G. Patterson. Linguistic capabilities of a lowland gorilla // F. C. Peng (ed.). Sign Language and Language Acquisition in Man and Ape: New Dimensions in Comparative Pedolinguistics. Boulder, CO: Westview Press, 1978. P. 161–201.

PATTERSON, Cohn 1990 — F. G. Patterson, R. H. Cohn. Language acquisition by a lowland gorilla: Koko’s first ten years of vocabulary development // Word. 1990. Vol. 41. № 2. P. 97—143.

PEARCE 1998 — J. M. Pearce. Animal Learning and Cognition: an Introduction. Psychological Press Ltd., 1998. 333 p.

PEPPERBERG 1981 — I. M. Pepperberg. Functional vocalizations by an African Grey parrot (Psittacus erithacus) // Zeitschrift f"ur Tierpsychologie.