Stanilova, M., B. Traykova, V. Vladimirov, M. Petrova, I. Semerdjieva, and E. Yankova-Tsvetkova. “In Vitro Micropropagation of Helichrysum Arenarium (Asteraceae) As a Tool for Introducing the Species in Agriculture”. Proceedings of the Bulgarian Academy of Sciences, vol. 75, no. 10, Oct. 2022, pp. 1454-61, doi:10.7546/CRABS.2022.10.07.