TY - JOUR AU - H. Pickett TI - Subdirect representations of relational systems JO - Fundamenta Mathematicae PY - 1964 SP - 223 EP - 240 VL - 56 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-56-2-223-240/ DO - 10.4064/fm-56-2-223-240 LA - en ID - 10_4064_fm_56_2_223_240 ER -