00694naa#a2200157#i#450# EN\\bibl\19037 20260122021618.4 20251230b2025####ek#y0engy0150####ca RU ON ONE OVERDETERMINED SYSTEM OF PARTIAL DERIVATIVE EQUATIONS WITH COMPLEX PERIODIC COEFFICIENTS Conference article/thesis Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2025 4 с. Conference article/thesis local Дифференциальные уравнения с частными производными. 517.95 Jumaev B. M. bibl.vgltu.ru