@article{10_4064_fm228_3_5,
     author = {Ramiro de la Vega},
     title = {Coloring grids},
     journal = {Fundamenta Mathematicae},
     pages = {283--289},
     publisher = {mathdoc},
     volume = {228},
     number = {3},
     year = {2015},
     doi = {10.4064/fm228-3-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm228-3-5/}
}