\Bibitem{Dya65} \by V.~F.~D'yachenko \paper A new method for the numerical solution of non-stationary problems of gas dynamics with two space variables \jour Zh. Vychisl. Mat. Mat. Fiz. \yr 1965 \vol 5 \issue 4 \pages 680--688 \mathnet{http://mi.mathnet.ru/zvmmf7547} \mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=0200008} \zmath{https://zbmath.org/?q=an:0234.76050} \transl \jour U.S.S.R. Comput. Math. Math. Phys. \yr 1965 \vol 5 \issue 4 \pages 133--143 \crossref{https://doi.org/10.1016/0041-5553(65)90124-2}