JULA, F.; ILLYES, G. The nectar secretion of some cultivated and spontaneous plant species. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, [S. l.], v. 3, n. 1, p. 163–165, 1967. DOI: 10.15835/nbha31111. Disponível em: https://www.notulaebotanicae.ro/index.php/nbha/article/view/111. Acesso em: 8 dec. 2022.