16 Differential equations with coincident central dispersions of the x-th and (x + 1)-th kinds (x=1,3)
(English).
In:
Borůvka, Otakar; Arscott, F. M. (translator): Linear Differential Transformations of the Second Order.
(English).
London:
The English Universities Press, Ltd.,
1971.
0-340-12408-3,
pp. [149]-156
