DREMLIUGA, Natalia G..
 Morphological peculiarities of calyx in species from Campanula L. subsection Involucratae (Fom.) Fed. in flora of Ukraine.
<strong>Modern Phytomorphology</strong>, [S.l.], v. 6, p. 259-262, apr. 2014.
ISSN 2227-9555.
Available at: &lt;<a href="http://ojs.phytomorphology.org/index.php/MP/article/view/165" target="_new">http://ojs.phytomorphology.org/index.php/MP/article/view/165</a>&gt;. Date accessed: 12 apr. 2018.
doi: <a href="https://doi.org/10.5281/zenodo.160777">https://doi.org/10.5281/zenodo.160777</a>.