@article{JAC_2016__43_3_a4,
     author = {Bond, Benjamin and Levine, Lionel},
     title = {Abelian networks. {III:} {The} critical group},
     journal = {Journal of Algebraic Combinatorics},
     pages = {635--663},
     publisher = {mathdoc},
     volume = {43},
     number = {3},
     year = {2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2016__43_3_a4/}
}