@article {IOPORT.50239211,
    author       = {Lau, Francis C. M. and Cheng, Philip K. W. and Tse, Savio S. H.},
    title        = {An algorithm for the 2-median problem on two-dimensional meshes},
    year         = {2001},
    journal      = {Comput. J.},
    volume       = {44},
    number       = {2},
    pages        = {101-108},
    doi          = {10.1093/comjnl/44.2.101},
    identifier   = {50239211},
}