TY JOUR TI Economic aspects of the infrastructure of a modern megalopolis, taking into account the environmental 
safety of sewage treatment plants KW investments KW modernization of sewage treatment plants KW megalopolis infrastructure KW environmental safety JO Journal of economic studies AU Zinevich, N.N. AU Bochkarev, A.V. AU Levashov, S.A. PY 2025 IS 11 PB INFRA-M Academic Publishing LLC.