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

Bogazici University, Kandilli Observatory and Earthquake Research Institute, Magnetic Service, 81221 Cengelkoey - Istanbul, P.O. Box 13, Turkey