[1]
“On classification of low-dimensional non-conjugate subalgebras of the Lie algebra of the Poincare group P(1,4)”, ЗПІМ, vol. 3, no. 2, pp. 301–307, Nov. 2006, Accessed: Sep. 14, 2026. Available: https://trim.imath.kiev.ua/index.php/trim/article/view/474