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11. LEDERHOUSE, R.C., CÁRON, D.M. és MORSE, R.A. (1968): Onion pollination in New York. - (N.Y. fd. Life Sei., 1(3), p. 8-9). 12. LEPPIK, E.E. (1957): Evolutionary relationship between entomophilous plants and anthophilous insects. - Evolution, 11: 466-481. 13. MIYAMOTO, S. (1962): Outline of flower relationships of Japanese bees. - Ac­ta Hymenopterologica, 1_: 393-455. A szerző cime: (Author's address:) Dr. P. BENEDEK Ministry of Agriculture and Food, Plant Protection Centre H-1502 Budapest Budaörsi ut 141-145. Pf. 127.

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