TY - JOUR AU - Takashi Nakamura TI - Joint value approximation and joint universality for several types of zeta functions JO - Acta Arithmetica PY - 2008 SP - 67 EP - 82 VL - 134 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa134-1-5/ DO - 10.4064/aa134-1-5 LA - en ID - 10_4064_aa134_1_5 ER -