@article{10_4153_CJM_1975_129_1,
     author = {Noussair, E. S.},
     title = {Oscillation of {Elliptic} {Equations} in {General} {Domains}},
     journal = {Canadian journal of mathematics},
     pages = {1239--1245},
     year = {1975},
     volume = {27},
     number = {6},
     doi = {10.4153/CJM-1975-129-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-129-1/}
}