WIŚNIEWSKA, Natalia; 						BOHDANOWICZ, Jerzy; 						KOWALKOWSKA, Agnieszka K..
 Micromorphology and ultrastructure of the floral nectaries of Viola odorata L. (Violaceae).
<strong>Modern Phytomorphology</strong>, [S.l.], v. 7, p. 59-66, may 2015.
ISSN 2227-9555.
Available at: &lt;<a href="http://ojs.phytomorphology.org/index.php/MP/article/view/85" target="_new">http://ojs.phytomorphology.org/index.php/MP/article/view/85</a>&gt;. Date accessed: 12 apr. 2018.
doi: <a href="https://doi.org/10.5281/zenodo.160363">https://doi.org/10.5281/zenodo.160363</a>.