@misc{Grundland_A._Riemann_1974, author={Grundland, A.}, volume={24}, number={2}, copyright={Creative Commons Attribution BY 4.0 license}, address={Warszawa}, journal={Archives of Mechanics}, howpublished={online}, year={1974}, publisher={Polish Scientific Publishers IFTR}, language={eng}, language={pol}, language={rus}, title={Riemann invariants for nonhomogenous systems of first-order partial quasi-linear differential equations - algebraic aspects. Examples for gasdynamics}, type={Text}, URL={http://www.rcin.org.pl/Content/154763/PDF/WA727_105357_P.262-Grundland-Riemann.pdf}, keywords={Mechanika stosowana - czasopisma [KABA]}, }