Myrzakulova, Z., Yesmakhanova, K., & Zhubayeva, Z. (2021). EQUIVALENCE OF THE HUNTER-SAXON EQUATION AND THE GENERALIZED HEISENBERG FERROMAGNET EQUATION. Physico-Mathematical Series, (2), 33–38. извлечено от http://550300.0ncwlf7ax.asia/physics-mathematics/article/view/283