@article{10_4153_CJM_1973_003_5,
     author = {Grant, Kerry E.},
     title = {Axioms for an n-metric {Structure}},
     journal = {Canadian journal of mathematics},
     pages = {24--30},
     year = {1973},
     volume = {25},
     number = {1},
     doi = {10.4153/CJM-1973-003-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-003-5/}
}