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@article{MS2_1967__21_166019, author = {Andrew Sobczyk}, title = {The {Obliquity-Type} of a {Set} of {Vectors.}}, journal = {Mathematica Scandinavica}, pages = {195--198}, publisher = {mathdoc}, volume = {21}, year = {1967}, zbl = {0174.52603}, url = {http://geodesic.mathdoc.fr/item/MS2_1967__21_166019/} }
Andrew Sobczyk. The Obliquity-Type of a Set of Vectors.. Mathematica Scandinavica, Tome 21 (1967), pp. 195-198. http://geodesic.mathdoc.fr/item/MS2_1967__21_166019/