Spryagailo, O. (2003). The biology of blossoming of new varieties and hybrids of pear bred in condition of Central Forest-Steppe of Ukraine. M.M. Gryshko National Botanical Garden of the NAS of Ukraine. https://doi.org/10.5281/zenodo.3253131
Chicago-Zitierstil (17. Ausg.)Spryagailo, O.A. The Biology of Blossoming of New Varieties and Hybrids of Pear Bred in Condition of Central Forest-Steppe of Ukraine. M.M. Gryshko National Botanical Garden of the NAS of Ukraine, 2003. https://doi.org/10.5281/zenodo.3253131.
MLA-Zitierstil (8. Ausg.)Spryagailo, O.A. The Biology of Blossoming of New Varieties and Hybrids of Pear Bred in Condition of Central Forest-Steppe of Ukraine. M.M. Gryshko National Botanical Garden of the NAS of Ukraine, 2003. https://doi.org/10.5281/zenodo.3253131.