%0 Journal Article %A Nina Spears %T A problem involving simultaneous binary compositions %J Acta Arithmetica %D 1972 %P 11-20 %V 22 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-22-1-11-20/ %R 10.4064/aa-22-1-11-20 %G en %F 10_4064_aa_22_1_11_20