TY - JOUR AU - Tunaru, Radu TI - An extension of invertibility of Hammerstein-type operators JO - Czechoslovak Mathematical Journal PY - 1999 SP - 341 EP - 346 VL - 49 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMJ_1999__49_2_a9/ LA - en ID - CMJ_1999__49_2_a9 ER -