Лещук, Н. В., Панькова, І. М. and Стефківська, Ю. Л. (2018) “Economic and bioenergy evaluation of lettuce (Lactuca sativa L.) seed production efficiency in the conditions of Ukrainian Polissia”, Plant varieties studying and protection, 14(3), pp. 328–334. doi: 10.21498/2518-1017.14.3.2018.145313.