@article{1183516114, author = {Lorch, E. R.}, title = {Joseph Fels Ritt}, journal = {Bull. Amer. Math. Soc.}, volume = {57}, number = {6}, year = {1951}, pages = { 307-318}, language = {en}, url = {http://dml.mathdoc.fr/item/1183516114} }
Lorch, E. R. Joseph Fels Ritt. Bull. Amer. Math. Soc., Tome 57 (1951) no. 6, pp. 307-318. http://gdmltest.u-ga.fr/item/1183516114/