TY - JOUR AU - Voloch, J. F. TI - Explicit $p$-descent for elliptic curves in characteristic $p$ JO - Compositio Mathematica PY - 1990 SP - 247 EP - 258 VL - 74 IS - 3 PB - Kluwer Academic Publishers UR - http://www.numdam.org/item/CM_1990__74_3_247_0/ LA - en ID - CM_1990__74_3_247_0 ER -