@article{PFMT_2017_4_a13,
     author = {V. G. Safonov and I. N. Safonova},
     title = {Separability of the lattice of $\tau$-closed totally $\omega$-saturated formations of finite groups},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {76--83},
     publisher = {mathdoc},
     number = {4},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2017_4_a13/}
}