@inbook{401703, title = {Supplementary Bibliography}, booktitle = {Linear Differential Transformations of the Second Order}, series = {GDML\_Books}, publisher = {The English Universities Press, Ltd.}, address = {London}, year = {1971}, pages = {[248]-249}, url = {http://dml.mathdoc.fr/item/401703} }
(éd.). Supplementary Bibliography, dans Linear Differential Transformations of the Second Order, GDML_Books, (1971), pp. [248]-249. http://gdmltest.u-ga.fr/item/401703/