@article{10_1007_s10492_014_0063_5,
     author = {Sabo, Kristian and Scitovski, Rudolf},
     title = {Interpretation and optimization of the $k$-means algorithm},
     journal = {Applications of Mathematics},
     pages = {391--406},
     publisher = {mathdoc},
     volume = {59},
     number = {4},
     year = {2014},
     doi = {10.1007/s10492-014-0063-5},
     mrnumber = {3233551},
     zbl = {06362235},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10492-014-0063-5/}
}