@article{10_4153_CJM_1971_004_0,
     author = {Robertson, Neil},
     title = {Pentagon-Generated {Trivalent} {Graphs} with {Girth} 5},
     journal = {Canadian journal of mathematics},
     pages = {36--47},
     year = {1971},
     volume = {23},
     number = {1},
     doi = {10.4153/CJM-1971-004-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-004-0/}
}