%0 Journal Article %A H. Pickett %T Subdirect representations of relational systems %J Fundamenta Mathematicae %D 1964 %P 223-240 %V 56 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-56-2-223-240/ %R 10.4064/fm-56-2-223-240 %G en %F 10_4064_fm_56_2_223_240