@article{10_4153_CJM_1973_032_x,
     author = {King, Larry},
     title = {R-isomorphisms of {Transformation} {Groups} and {Prolongations}},
     journal = {Canadian journal of mathematics},
     pages = {338--344},
     year = {1973},
     volume = {25},
     number = {2},
     doi = {10.4153/CJM-1973-032-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-032-x/}
}