@article{10_4153_CMB_1987_065_9,
     author = {Rhoades, B. E.},
     title = {The {Spectrum} of {Weighted} {Mean} {Operators}},
     journal = {Canadian mathematical bulletin},
     pages = {446--449},
     year = {1987},
     volume = {30},
     number = {4},
     doi = {10.4153/CMB-1987-065-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1987-065-9/}
}