Bekbaev, U., and S. Eshmirzaev. “COMPLETE CLASSIFICATION OF TWO-DIMENSIONAL ALGEBRAS OVER THE FIELD OF RATIONAL NUMBERS”. Acta of Turin Polytechnic University in Tashkent, vol. 11, no. 1, Mar. 2021, pp. 49-54, https://acta.polito.uz/index.php/journal/article/view/bekbaev.