@article{JRAM_1968__230_150852,
     author = {J.H.H. Chalk and C.A. Rogers},
     title = {A study of {Convex} {Cones} from the point of view of the {Geometry} of {Numbers.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {139--166},
     publisher = {mathdoc},
     volume = {230},
     year = {1968},
     zbl = {0167.32002},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1968__230_150852/}
}