@article{10_4153_CJM_1974_064_9,
     author = {Lin, C.-S.},
     title = {On a {Family} of {Generalized} {Numerical} {Ranges}},
     journal = {Canadian journal of mathematics},
     pages = {678--685},
     year = {1974},
     volume = {26},
     number = {3},
     doi = {10.4153/CJM-1974-064-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1974-064-9/}
}