TY - JOUR AU - David Yost TI - $L_1$ contains every two-dimensional normed space JO - Annales Polonici Mathematici PY - 1988 SP - 17 EP - 19 VL - 49 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-49-1-17-19/ DO - 10.4064/ap-49-1-17-19 LA - en ID - 10_4064_ap_49_1_17_19 ER -