Хамитов, Р. С., С. А. Корчагов, М. Д. Мерзленко, В. Ф. Ковязин, and Е. Н. Кузнецов. “Correlation Between Dissymmetry of Siberian Pine Cones and Formation of Seeds in Them”. Lesnoy Zhurnal (Russian Forestry Journal), no. 4, July 2019, p. 66, doi:10.37482/0536-1036-2019-4-66.