CHIRCA, Eugenia. “Some Teratological Cases Found on Angiospermous Plants”. Notulae Botanicae Horti Agrobotanici Cluj-Napoca 2, no. 1 (August 5, 1966): 77-80. Accessed January 19, 2020. https://notulaebotanicae.ro/index.php/nbha/article/view/22.