Кутовенко, В. Б., Н. П. Костенко, and М. В. Баранець. “Dependence of Plant Biometrics of Cutting Lettuce (<em>Lactuca sativa</em≫ L.) Varietis on the Concentration of Microfertilizer Avatar-1”. Plant Varieties Studying and Protection, vol. 13, no. 3, Sept. 2017, pp. 308-12, doi:10.21498/2518-1017.13.3.2017.110714.