@article{10_4153_CMB_1959_004_7,
     author = {Goldman, A. J. and Marcus, M.},
     title = {Convexity of the {Field} of a {Linear} {Transformation}},
     journal = {Canadian mathematical bulletin},
     pages = {15--18},
     year = {1959},
     volume = {2},
     number = {1},
     doi = {10.4153/CMB-1959-004-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1959-004-7/}
}