@article{10_4153_CMB_1985_060_1,
     author = {Murata, Minoru},
     title = {Finiteness of {Negative} {Spectra} of {Elliptic} {Operators}},
     journal = {Canadian mathematical bulletin},
     pages = {487--491},
     year = {1985},
     volume = {28},
     number = {4},
     doi = {10.4153/CMB-1985-060-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1985-060-1/}
}