%0 Journal Article %A I. Sh. Kalimullin %A A. Kach %A A. Montalbán %A V. G. Puzarenko %A M. Kh. Faizrakhmanov %T Jump inversions of algebraic structures and the $\Sigma$-definability %J Algebra i logika %D 2018 %P 243-249 %V 57 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_2018_57_2_a6/ %G ru %F AL_2018_57_2_a6