%0 Journal Article %A Thomas A. Brown %A Joel H. Spencer %T Minimization of ±1 matrices under line shifts %J Colloquium Mathematicum %D 1971 %P 165-171 %V 23 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-23-1-165-171/ %R 10.4064/cm-23-1-165-171 %G en %F 10_4064_cm_23_1_165_171