TY - JOUR AU - Waldemar PopiƄski TI - Least-squares trigonometric regression estimation JO - Applicationes Mathematicae PY - 1999 SP - 121 EP - 131 VL - 26 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/am-26-2-121-131/ DO - 10.4064/am-26-2-121-131 LA - en ID - 10_4064_am_26_2_121_131 ER -