Pershukevich, . P. M.; Vasilievna Tyu, L. .; Pavlovich Zadkov, A. .; Vasilievna Shchetinina, I. .; Mikhailovna Edrenkina, N. . ASSESSMENT OF FOOD SELF-SUFFICIENCY AND STABILITY BASED ON POTENTIAL THEORY. INCLU 2020, 77-89.