Free, J. B. 1956. A study of the stimuli which release the food begging and offering responses of worker honeybees. The British journal of animal behaviour. 4 (3), pp. 95-101. https://doi.org/10.1016/S0950-5601(56)80129-9
Stokes, B. M. 1955. Behaviour as a means of identifying two closely-allied species of gall midges. The British journal of animal behaviour. 3 (4), pp. 154, IN1, 155-157. https://doi.org/10.1016/S0950-5601(55)80054-8
Free, J. B. 1955. The adaptability of bumblebees to a change in the location of their nest. The British journal of animal behaviour. 3 (2), pp. 61-65. https://doi.org/10.1016/S0950-5601(55)80014-7
Free, J. B. 1955. The behaviour of egg-laying workers of bumblebee colonies. The British journal of animal behaviour. 3 (4), pp. 147-153. https://doi.org/10.1016/S0950-5601(55)80053-6
Ribbands, C. R. and Speirs, N. 1953. The adaptability of the homecoming honeybee. The British journal of animal behaviour. 1 (2), pp. 59-66. https://doi.org/10.1016/S0950-5601(53)80055-9
Ribbands, C. R. 1953. The inability of honeybees to communicate colours. The British journal of animal behaviour. 1 (1), pp. 5-7. https://doi.org/10.1016/S0950-5601(53)80078-X