BENEDEK, P.; NYÉKI, J.; AMTMANN, I.; BAKCSA, F.; IVÁNCSICS, J.; ERDŐS, Z.; SKOLA, I. The effect of spring frosts on the nectar production and the bee visitation of fruit trees. International Journal of Horticultural Science, [S. l.], v. 6, n. 1, p. 86–89., 2000. DOI: 10.31421/IJHS/6/1/75. Disponível em: https://ojs.lib.unideb.hu/IJHS/article/view/75. Acesso em: 6 may. 2021.