@article{10_4153_CJM_1993_062_8,
     author = {Borwein, J. M. and Fabian, M.},
     title = {On {Convex} {Functions} {Having} {Points} of {Gateaux} {Differentiability} {Which} are {Not} {Points} of {Fr\'echet} {Differentiability}},
     journal = {Canadian journal of mathematics},
     pages = {1121--1134},
     year = {1993},
     volume = {45},
     number = {6},
     doi = {10.4153/CJM-1993-062-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1993-062-8/}
}