For citations:
Jabbarov I.Sh., Meshaik S.A., Ismailova M.M. On number of sheets of coverings defined by a system of equations in π-dimensional spaces. Chebyshevskii Sbornik. 2023;24(5):16-30. (In Russ.) https://doi.org/10.22405/2226-8383-2023-24-5-16-30