TY - JOUR AU - Pušić Nevena, TI - On the existence of a self-recurent SW-On JO - Novi Sad Journal of Mathematics PY - 1989 SP - 41 EP - 52 VL - 19 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NSJOM_1989_19_2a_3/ ID - NSJOM_1989_19_2a_3 ER -