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@article{BNYMS_1891__1_186455, author = {Mansfield Merriman}, title = {A {Problem} in {Least} {Squares.}}, journal = {Bulletin of the New York Mathematical Society}, pages = {39--42}, publisher = {mathdoc}, volume = {1}, year = {1891}, zbl = {23.0241.01}, url = {http://geodesic.mathdoc.fr/item/BNYMS_1891__1_186455/} }
Mansfield Merriman. A Problem in Least Squares.. Bulletin of the New York Mathematical Society, Tome 1 (1891), pp. 39-42. http://geodesic.mathdoc.fr/item/BNYMS_1891__1_186455/