Safonova, I. N.; Safonov, V. G. On Some Properties of the Lattice of Totally σ-Local Formations of Finite Groups. Журнал Белорусского государственного университета. Математика. Информатика 2020, No. 3, 6-16. https://doi.org/10.33581/2520-6508-2020-3-6-16.