1. Real-time reconstruction of the vertical electron density distribution from GPS TEC measurements

   • S. M. Stankov
   • R. Warnant
   • J. C. Jodogne

   OriginalPaper 27 February 2013 Pages: 377 - 388

2. The Krakatoa event and associated phenomena — A historical review

   • W. Schröder

   ReviewPaper 27 February 2013 Pages: 389 - 395

3. War against error using the method of surplus errors

   • B. Hajagos
   • F. Steiner

   OriginalPaper 27 February 2013 Pages: 411 - 423

4. Effectiveness of the surplus error method in function of the number N of the applied surplus error sets

   • B. Hajagos
   • F. Steiner

   OriginalPaper 27 February 2013 Pages: 425 - 427

5. Stress level estimation for the ground beneath the 15th of May city buildings, Helwan, Cairo, Egypt

   • A. A. Tealeb
   • M. Sobaih
   • Kamal Abdel-Rahman

   OriginalPaper 27 February 2013 Pages: 429 - 443

6. Earthquake activity and hazard in the Carpathian Basin II

   • T. Zsíros

   OriginalPaper 27 February 2013 Pages: 445 - 465

7. Otto Jesse and the investigation of noctilucent clouds 115 years ago

   • W. Schröder

   OriginalPaper 27 February 2013 Pages: 467 - 476

8. Book reviews

   • J. Verő

   BookReview 27 February 2013 Pages: 477 - 479