@article{JAC_1997__6_4_a3,
     author = {Guiduli, Barry},
     title = {The structure of trivalent graphs with minimal eigenvalue gap},
     journal = {Journal of Algebraic Combinatorics},
     pages = {321--329},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_1997__6_4_a3/}
}