@article{10_4064_fm183_2_2,
     author = {Niel Shell},
     title = {Size functions},
     journal = {Fundamenta Mathematicae},
     pages = {109--113},
     publisher = {mathdoc},
     volume = {183},
     number = {2},
     year = {2004},
     doi = {10.4064/fm183-2-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm183-2-2/}
}