@article{01204398, title = {Uniqueness of initial value problems.}, journal = {Divulgaciones Matem\'aticas}, volume = {5}, year = {1997}, pages = {39-41}, zbl = {0976.34501}, language = {en}, url = {http://dml.mathdoc.fr/item/01204398} }
Travis, Betty. Uniqueness of initial value problems.. Divulgaciones Matemáticas, Tome 5 (1997) pp. 39-41. http://gdmltest.u-ga.fr/item/01204398/