TY - JOUR AU - L. Clozel TI - Numerical equivalence and cohomological equivalence for abelian varieties over finite fields JO - Annals of mathematics PY - 1999 VL - 150 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.2307/121099/ DO - 10.2307/121099 ID - 10_2307_121099 ER -