1. On F2 response to geomagnetic storm

   • V. U. Chukwuma

   OriginalPaper 27 February 2013 Pages: 1 - 7

2. Study on atmospheric electric parameters considering condensation nuclei and local meteorological factors

   • F. Märcz

   OriginalPaper 27 February 2013 Pages: 9 - 19

3. Frequency of occurrence of auroras at middle latitudes

   • W. Schröder

   OriginalPaper 27 February 2013 Pages: 21 - 23

4. Stability of the points of the Hungarian geodetic control networks

   • Gy. Szädeczky-Kardoss

   OriginalPaper 27 February 2013 Pages: 33 - 42

5. A study of distorsions of the primary triangulation network of Slovenia

   • B. Stopar
   • M. Kuhar

   OriginalPaper 27 February 2013 Pages: 43 - 52

6. The arithmetic-geometric mean and the elliptic mean error

   • D. Monhor

   OriginalPaper 27 February 2013 Pages: 53 - 60

7. Relative error of the estimations of different error characteristics

   • F. Steiner
   • B. Hajagos

   OriginalPaper 27 February 2013 Pages: 61 - 76

8. Some correlations between earthquakes and Earth tides

   • M. Stavinschi
   • J. Souchay

   OriginalPaper 27 February 2013 Pages: 77 - 92

9. S-wave velocity structure beneath the Mátra Mountains (Hungary) inferred from teleseismic receiver functions

   • Z. Bus

   OriginalPaper 27 February 2013 Pages: 93 - 102

10. The number of hotspots in three-dimensional numerical models of mantle convection

    • A. Galsa
    • L. Cserepes

    OriginalPaper 27 February 2013 Pages: 103 - 109

11. Book review

    • D. Martini

    BookReview 27 February 2013 Pages: 111 - 111

12. József Verő, the Editor-in-Chief is 70 years old

    • A. Ádám
    • L. Szarka
    • B. Zieger

    Announcement 27 February 2013 Pages: 113 - 126

13. In memoriam professor László Cserepes (1952–2002)

    • F. Horváth

    Announcement 27 February 2013 Pages: 127 - 129