00500naa#a2200157#i#450# EN\\bibl\91082 20250108093541.3 2221-3260 20241031b2024####ek#y0engy0150####ca RU Demand, the law of demand, Giffen and Veblen effects. Part 1. Functional demand Journal article Yaroslavl Yaroslavl State Technical University 2024 21 с. Journal article local Tsurikov Vladimir Ivanovich chemintech.ru