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@article{JRAM_1965__218_150675, author = {M.A. Al-Bassam}, title = {Some existence theorems on differential equations of generalized order.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {70--78}, publisher = {mathdoc}, volume = {218}, year = {1965}, zbl = {0156.30804}, url = {http://geodesic.mathdoc.fr/item/JRAM_1965__218_150675/} }
M.A. Al-Bassam. Some existence theorems on differential equations of generalized order.. Journal für die reine und angewandte Mathematik, Tome 218 (1965), pp. 70-78. http://geodesic.mathdoc.fr/item/JRAM_1965__218_150675/