@article{Ковалев_Ковалев_2005, title={Прибыль: логика определения и идентификации}, url={https://economicsjournal.spbu.ru/article/view/4217}, abstractNote={<p>Profit is considered as one of the most complicated categories in economics. Three approaches of profit definition and identification are analyzed in the paper. The following basic types of profit are identified within them: 1) economic profit, 2) entrepreneurial profit, and 3) accounting profit.</p>}, number={2}, journal={Вестник Санкт-Петербургского университета. Экономика}, author={Ковалев, Валерий Викторович and Ковалев, Виталий Валерьевич}, year={2005}, month={июн.}, pages={106–117} }