TY - JOUR T1 - Total Electron Content Estimation with Reg-Est A1 - Nayir, H. A1 - Arikan, F. A1 - Arikan, O. A1 - Erol, C.B. JA - J of Geophysical Research-Space Physics Y1 - 2007 VL - 112 SP - 11313 N1 - upd vol/pg 16-04-08 ER -