A DEVELOPMENT OF AN EFFECTIVE METHOD FOR THE SYNTHESIS OF 2-(5-OXO-4,5-DIHYDRO-1,2,4-OXADIAZOL-3-YL)BENZOIC ACID: DOI: Https: doi.Org 10.17721 1728-2209.2020.1(57).13. Вісник: Хімія 2020, 57 (1), 51-54.