Shcherbatiuk, Mykola, 		Babenko, Lidia, AND 		Kosakivska, Iryna.
" The ultrastructurе of chloroplasts and photosynthetic pigments in floating and submerged leaves of water fern Salvinia natans (L.) All during ontogeny" <em>Modern Phytomorphology</em> [Online], Volume 9(1 June 2016)