TY - JOUR T1 - Regularized Estimation of VTEC from GPS Data for a Desired Time Period A1 - Arikan, F. A1 - Erol, C.B. A1 - Arikan, O. JA - Radio Science Y1 - 2004 VL - 39 SP - 6012 N1 - upd from WOS 01-02-05 ER -