@article{CMH_1996__71_2_140394,
     author = {Y. de Colin de Verdi\`ere and I. Gitler},
     title = {Reseaux \'electriques planaires {II.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {144--168},
     publisher = {mathdoc},
     volume = {71},
     number = {2},
     year = {1996},
     url = {http://geodesic.mathdoc.fr/item/CMH_1996__71_2_140394/}
}