@article{10_4153_CJM_2011_007_5,
     author = {Esp{\'\i}nola, Rafa and Fern\'andez-Le\'on, Aurora},
     title = {On {Best} {Proximity} {Points} in {Metric} and {Banach} {Spaces}},
     journal = {Canadian journal of mathematics},
     pages = {533--550},
     year = {2011},
     volume = {63},
     number = {3},
     doi = {10.4153/CJM-2011-007-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2011-007-5/}
}