00832naa#a2200205#i#450# EN\\bibl\34523 20240429235852.1 2686-7788 20191218b2019####ek#y0engy0150####ca RU PROFESSIONAL PARTICIPANTS OF THE SECURITIES MARKET: THEIR COMPOSITION, DYNAMICS AND ROLE Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2019 4 с. Journal article local Математика. 51 Учетно-экономические науки. 06.35 grnti Наука управления экономикой. 06.39 grnti Cheklaukova Elena Leonidovna Marischuk Valeriy Dmitrievich angtu.editorum.ru