%0 Journal Article %A A. V. Atanov %A A. V. Loboda %T On nondegenerate orbits of $7$-dimensional Lie algebras containing a $3$-dimensional Abelian ideal %J Contemporary Mathematics. Fundamental Directions %D 2024 %P 517-532 %V 70 %N 4 %U http://geodesic.mathdoc.fr/item/CMFD_2024_70_4_a0/ %G ru %F CMFD_2024_70_4_a0