@article{GDZPPN002025310,
title = {L2-Solutions of y" = q (t) y and a Functional Equation},
journal = {Aequationes mathematicae},
volume = {7},
year = {1971},
pages = {162-169},
zbl = {0225.34022},
url = {http://dml.mathdoc.fr/item/GDZPPN002025310}
}
NEUMAN, F. L2-Solutions of y" = q (t) y and a Functional Equation. Aequationes mathematicae, Tome 7 (1971) pp. 162-169. http://gdmltest.u-ga.fr/item/GDZPPN002025310/