Boyko E. V. and Novozhilova E. V. 2025. Сrystals in the tissues of cypsela of species Heliantheae s.l. (Asteraceae). Проблемы ботаники Южной Сибири и Монголии. 24, 1 (Oct. 2025), 17-19. DOI:https://doi.org/10.14258/pbssm.2025004.