TY - JOUR AU - A. L. Fel'shtyn TI - A new zeta-function in Nielsen's theory and a universal product formula for dynamical zeta-functions JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1987 SP - 90 EP - 91 VL - 21 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1987_21_2_a18/ LA - ru ID - FAA_1987_21_2_a18 ER -