@article{GDZPPN002308479,
title = {k-Diskonjugiertheit von w(n) + p (z) w = 0 .},
journal = {Mathematische Annalen},
volume = {201},
year = {1973},
pages = {331-336},
zbl = {0259.34036},
url = {http://dml.mathdoc.fr/item/GDZPPN002308479}
}
Herold, Horst. k-Diskonjugiertheit von w(n) + p (z) w = 0 .. Mathematische Annalen, Tome 201 (1973) pp. 331-336. http://gdmltest.u-ga.fr/item/GDZPPN002308479/