@article{10_4171_dm_415,
     author = {Tom Leinster},
     title = {The magnitude of metric spaces},
     journal = {Documenta mathematica},
     pages = {857--905},
     year = {2013},
     volume = {18},
     doi = {10.4171/dm/415},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/415/}
}