\Bibitem{ZnaKulSte95} \by I.~A.~Znamenskaya, T.~A.~Kuli-zade, I.~V.~Stepanets \paper Visualization of supersonic gas flows with an impulsive space charge \jour Prikl. Mekh. Tekh. Fiz. \yr 1995 \vol 36 \issue 3 \pages 84--86 \mathnet{http://mi.mathnet.ru/pmtf3668} \transl \jour J. Appl. Mech. Tech. Phys. \yr 1995 \vol 36 \issue 3 \pages 394--396 \crossref{https://doi.org/10.1007/BF02369777}