On self-adjoint ordinary differential operators.
Mathematica Scandinavica, Tome 4 (1956), pp. 9-21
@article{MS2_1956__4_165604,
author = {EARL A. CODDINGTON},
title = {On self-adjoint ordinary differential operators.},
journal = {Mathematica Scandinavica},
pages = {9--21},
year = {1956},
volume = {4},
zbl = {0074.06701},
url = {http://geodesic.mathdoc.fr/item/MS2_1956__4_165604/}
}
EARL A. CODDINGTON. On self-adjoint ordinary differential operators.. Mathematica Scandinavica, Tome 4 (1956), pp. 9-21. http://geodesic.mathdoc.fr/item/MS2_1956__4_165604/