2.2.2 spase://SMWG/Person/Cengiz.Celik 2012-04-20T12:34:56.789 Cengiz Celik Iznik Geomagnetic Observatory, Bogazici University Kandilli Observatory and E.R.I.

Inzik Geomagnetic Observatory, Bogazici University, Kandilli Observatory, Iznik Geomagnetic Observatory, 16860 Iznik-Bursa, Turkey

celikc@boun.edu.tr +90 224 7576022