TY - JOUR AU - Ekhad, Shalosh B. AU - Zeilberger, Doron TI - The number of solutions of in triangular matrices over . JO - The Electronic Journal of Combinatorics [electronic only] PY - 1996 VL - 3 IS - 1 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/item/EJC_1996__3_1_118913/ LA - en ID - EJC_1996__3_1_118913 ER -