JULA, Florica, and Gh. ILLYES. “The Nectar Secretion of Some Cultivated and Spontaneous Plant Species”. Notulae Botanicae Horti Agrobotanici Cluj-Napoca 3, no. 1 (August 5, 1967): 163–165. Accessed December 5, 2024. https://notulaebotanicae.ro/index.php/nbha/article/view/111.