Article Takedown/Update Request

This is an update request for the document Monitoring, tracking and forecasting ionospheric perturbations using GNSS techniques by Norbert Jakowski, Yannick Béniguel, Giorgiana De Franceschi, Manuel Hernandez Pajares, Knut Stanley Jacobsen, Iwona Stanislawska, Lukasz Tomasik, René Warnant and Gilles Wautelet

Your paper was deposited in MUCC (Crossref) and appears online at https://www.swsc-journal.org/articles/swsc/pdf/2012/01/swsc120037.pdf
Before we are able to make any updates or deletions, you must ensure that the original record at this location is updated/removed.