@Article{JCM-4-50, author = {P. A. Raviart}, title = {Particle Approximation of First Order Systems}, journal = {Journal of Computational Mathematics}, year = {1986}, volume = {4}, number = {1}, pages = {50--61}, abstract = { }, issn = {1991-7139}, doi = {https://doi.org/}, url = {http://global-sci.org/intro/article_detail/jcm/9567.html} }