Vardar, Filiz, and Meral Unal. “Cytochemical and Ultrastructural Observations of Anthers and Pollen Grains in Lathyrus Undulatus Boiss”. Acta Botanica Croatica, vol. 70, no. 1, Apr. 2011, https://www.abc.botanic.hr/index.php/abc/article/view/353.