@article{MAN_1973__203_162433,
     author = {W.N. Everitt and M. Giertz},
     title = {A {Dirichlet} {Type} {Result} for {Ordinary} {Differential} {Operators.}},
     journal = {Mathematische Annalen},
     pages = {119--128},
     publisher = {mathdoc},
     volume = {203},
     year = {1973},
     zbl = {0241.34066},
     url = {http://geodesic.mathdoc.fr/item/MAN_1973__203_162433/}
}