TY - JOUR AU - Feng, Tao TI - Relative $(pn,p,pn,n)$-difference sets with $GCD(p,n)=1$ JO - Journal of Algebraic Combinatorics PY - 2009 SP - 91 EP - 106 VL - 29 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JAC_2009__29_1_a1/ LA - en ID - JAC_2009__29_1_a1 ER -