TY - JOUR AU - Stojmenović Ivan AU - Stojković Vojislav TI - Some proofs by strzctural induction on lists JO - Novi Sad Journal of Mathematics PY - 1982 SP - 235 EP - 250 VL - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NSJOM_1982_12_Nonea_19/ ID - NSJOM_1982_12_Nonea_19 ER -