TY - JOUR TI - On food preferences of sympatric species of Drosophila PY - 1951 AU - Cunha, Antonio Brito da AU - Dobzhansky, Theodosius Grigorievich AU - Sokoloff, A. T2 - Evolution SN - 0014-3820 PP - Lancaster VL - 5 SP - 97-101 IS - ju 1951 ER -