MATRICES FOR TISSUE ENGINEERING BASED ON ULTRAFINE FIBERS AND MICROPARTICLES OF POLY(HYDROXYBUTYRATE) ArticleBonartsev A.P., Ol’Khov A.A., Khan O.I., Kucherenko E.L., Filatova A.G., Zernova Y.N., Iordanskii A.L.Inorganic Materials: Applied Research. Vol. 12. 2021. P.. 974-979