Pandeliev, Slavcho, and Venelin Roytchev. 1996. “Comparative Scanning Electron Microscopy Investigations on Some Characteristics of the Pollen Aperture Complex in Seedless Grape <em>Vitis vinifera< em> L. Cultivars”. OENO One 30 (1):1-6. https://doi.org/10.20870/oeno-one.1996.30.1.1115.