SYNTHESIS OF 7-HYDROXY-2,8-DIMETHYL-4-OXO-3-PHENOXY-4H-6-CHROMENECARBALDEHYDE: DOI: Https: doi.Org 10.17721 1728-2209.2018.1(55).13. Вісник: Хімія 2019, 55 (1), 54-57.