Note on the estimating the Sun’s radiation output during the Maunder minimum and the problem of solar variability W. SchröderH. -J. Treder OriginalPaper 27 February 2013 Pages: 257 - 259
On latitude dependence of geomagnetic storm after-effects in ionospheric absorption V. U. Chukwuma OriginalPaper 27 February 2013 Pages: 261 - 267
Simultaneous measurements of the atmospheric electric potential gradient at Nagycenk observatory by means of two individual equipments F. MärczJ. HorváthJ. Bór OriginalPaper 27 February 2013 Pages: 269 - 278
A compact derivation of basic relationships to determine subsurface resistivity functions L. Szarka OriginalPaper 27 February 2013 Pages: 279 - 283
Refraction in leveling and a method for its determination — Theoretical basis O. A. Mozzhukhin OriginalPaper 27 February 2013 Pages: 297 - 312
Local seasonal gravity changes in the Lower Rhine Embayment, Germany Ch. J. KeysersH. -J. KümpelJ. Campbell OriginalPaper 27 February 2013 Pages: 313 - 326
Practical — but mysterious — behaviour of the most frequent values F. SteinerB. Hajagos OriginalPaper 27 February 2013 Pages: 327 - 338
Relative orientation of images taken by non-metric cameras using 2D projective transformations and robust estimation L. Battha OriginalPaper 27 February 2013 Pages: 339 - 344
Filtering of Earth’s polar motion using trigonometric interpolation J. Závoti OriginalPaper 27 February 2013 Pages: 345 - 352
Seismicity and recent crustal movement studies in and around the greater Cairo region, Egypt Abd El-Monem Sayed Mohamed OriginalPaper 27 February 2013 Pages: 353 - 362
Comments to the paper I Lisac, “overview of scientific activities in geomagnetism and aeronomy in Croatia” W. Schröder OriginalPaper 27 February 2013 Pages: 363 - 363
Georg von Neumayer (1826–1909) and international geophysics — A case study with special remarks on geomagnetic research W. SchröderK. -H. Wiederkehr OriginalPaper 27 February 2013 Pages: 365 - 373
