Gavrilkova, E.A., S.U. Tleukenova, A.K. Ramazanov, Zhumina А.G., Seldugayev О.B., and Zinovjev L.А. 2023. “Study of the Influence of Some Physical Factors on the Viability of Seeds of Echinaceae Pallida Variety ‘Lebedushka’”. Fundamental and Experimental Biology 112 (4):42-48. https://doi.org/10.31489/2023bmg4/42-48.