For citations:

Gvishiani A.D., Agayan S.M., Bogoutdinov Sh.R. Investigation of systems of real functions on two-dimensional grids using fuzzy sets. Chebyshevskii Sbornik. 2019;20(1):94-111. (In Russ.) https://doi.org/10.22405/2226-8383-2019-20-1-94-111