@article{AM2_1977__15_136625,
     author = {W.T. Tutte},
     title = {Bridges and {Hamiltonian} circuits in planar graphs.},
     journal = {Aequationes mathematicae},
     pages = {1--34},
     publisher = {mathdoc},
     volume = {15},
     year = {1977},
     zbl = {0357.05039},
     url = {http://geodesic.mathdoc.fr/item/AM2_1977__15_136625/}
}