Yulbarsov, K. 2024. THE SECOND BOUNDARY VALUE PROBLEM FOR A PSEUDO-PARABOLIC EQUATION OF THE THIRD ORDER WITH A FRACTIONAL DERIVATIVE AND WITH A BESSEL OPERATOR. Journal of Osh State University. Mathematics. Physics. Technical Sciences. 1(4) (Jun. 2024), 239–246. DOI:https://doi.org/10.52754/16948645_2024_1(4)_45.