Karwowska, Kamila, 		Brzezicka, Emilia, 		Kozieradzka-Kiszkurno, Małgorzata, AND 		Chernetskyy, Mykhaylo.
" Anatomical structure of the leaves of Crassula cordata (Crassulaceae)" <em>Modern Phytomorphology</em> [Online], Volume 8(20 May 2015)