@article{10_4153_CMB_1968_006_9,
     author = {Lightstone, A.H.},
     title = {Group {Theory} and the {Principle} of {Duality}},
     journal = {Canadian mathematical bulletin},
     pages = {43--50},
     year = {1968},
     volume = {11},
     number = {1},
     doi = {10.4153/CMB-1968-006-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1968-006-9/}
}