SYNTHESIS OF SELENIUM-CONTAINING CHITOSAN DERIVATIVES AND THEIR ANTIBACTERIAL ACTIVITY Article Egorov A.R., Artemjev A.A., Kozyrev V.A., Sikaona D.N., Rubanik V.V., Kritchenkov I.S., Yagafarov N.Z., Khubiev O.M., Tereshina T.A., Kultyshkina E.K., Medjbour B., Khrustalev V.N., Kritchenkov A.S., Rubanik Jr V.V. Applied Biochemistry and Microbiology. Vol. 58. 2022. P. 132-135