%0 Journal Article %A M. S. Filipkovska %A V. P. Kotlyarov %A E. A. Melamedova (Moskovchenko) %T Maxwell–Bloch equations without spectral broadening: gauge equivalence, transformation operators and matrix Riemann–Hilbert problems %J Žurnal matematičeskoj fiziki, analiza, geometrii %D 2017 %P 119-153 %V 13 %N 2 %U http://geodesic.mathdoc.fr/item/JMAG_2017_13_2_a1/ %G en %F JMAG_2017_13_2_a1