@article{10_4153_CJM_1982_060_3,
     author = {Lubin, A. R.},
     title = {Spectral {Inclusion} and {C.N.E.}},
     journal = {Canadian journal of mathematics},
     pages = {883--887},
     year = {1982},
     volume = {34},
     number = {4},
     doi = {10.4153/CJM-1982-060-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1982-060-3/}
}