@article{AL_2023_62_4_a1,
     author = {N. N. Vorob'ev},
     title = {Modularity of the lattice of {Baer} $n$-multiply $\sigma$-local formations},
     journal = {Algebra i logika},
     pages = {458--478},
     publisher = {mathdoc},
     volume = {62},
     number = {4},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2023_62_4_a1/}
}