@inbook{401690, title = {20 General dispersions of the differential equations (q), (Q)}, booktitle = {Linear Differential Transformations of the Second Order}, series = {GDML\_Books}, publisher = {The English Universities Press, Ltd.}, address = {London}, year = {1971}, pages = {[173]-182}, language = {cs}, url = {http://dml.mathdoc.fr/item/401690} }
(éd.). 20 General dispersions of the differential equations (q), (Q), dans Linear Differential Transformations of the Second Order, GDML_Books, (1971), pp. [173]-182. http://gdmltest.u-ga.fr/item/401690/