TY - JOUR AU - Leonard, Douglas A. TI - Rational functions and association scheme parameters JO - Journal of Algebraic Combinatorics PY - 1997 SP - 269 EP - 277 VL - 6 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JAC_1997__6_3_a2/ LA - en ID - JAC_1997__6_3_a2 ER -