@inbook{401686,
title = {16 Differential equations with coincident central dispersions of the x-th and (x + 1)-th kinds (x=1,3)},
booktitle = {Linear Differential Transformations of the Second Order},
series = {GDML\_Books},
publisher = {The English Universities Press, Ltd.},
address = {London},
year = {1971},
pages = {[149]-156},
url = {http://dml.mathdoc.fr/item/401686}
}
(éd.). 16 Differential equations with coincident central dispersions of the x-th and (x + 1)-th kinds (x=1,3), dans Linear Differential Transformations of the Second Order, GDML_Books, (1971), pp. [149]-156. http://gdmltest.u-ga.fr/item/401686/