@inbook{401684, title = {14 Extension of solutions of a differential equation (q) and their derivatives}, booktitle = {Linear Differential Transformations of the Second Order}, series = {GDML\_Books}, publisher = {The English Universities Press, Ltd.}, address = {London}, year = {1971}, pages = {[135]-137}, url = {http://dml.mathdoc.fr/item/401684} }
(éd.). 14 Extension of solutions of a differential equation (q) and their derivatives, dans Linear Differential Transformations of the Second Order, GDML_Books, (1971), pp. [135]-137. http://gdmltest.u-ga.fr/item/401684/