Kirakosyan, R., & Stepanyan, S. (2019). THE NON-CLASSICAL PROBLEM OF AN ORTHOTROPIC BEAM OF VARIABLE THICKNESS WITH THE SIMULTANEOUS ACTION OF ITS OWN WEIGHT AND COMPRESSIVE AXIAL FORCES. Proceedings of the YSU A: Physical and Mathematical Sciences, 53(3 (250), 183–190. https://doi.org/10.46991/PYSU:A/2019.53.3.183