The trajectory of a light ray through the atmosphere as a solution of a system of differential equations Jan Vondrák OriginalPaper 01 September 1969 Pages: 231 - 238
An ideal isotropic bidimensional filter and its application in the interpretation of gravity anomalies Maria Bozzi Zadro OriginalPaper 01 September 1969 Pages: 239 - 251
Statistical characteristics of linear transformations of gravity anomalies Vincenc Vyskočil OriginalPaper 01 September 1969 Pages: 252 - 258
On the solution of the Molodenskii boundary value problem using successive approximations Petr Velkoborský OriginalPaper 01 September 1969 Pages: 259 - 266
Fitting the amplitude curves of seismic waves by numerical methods Karel KlímaJiří Vaněk OriginalPaper 01 September 1969 Pages: 267 - 275
Rapid changes in the fourier spectra ofPi1 pulsations during magnetically disturbed periods Karel Prikner OriginalPaper 01 September 1969 Pages: 276 - 292
Comparison of data on geomagnetic pulsations recorded by various instruments Jaroslav Střeštík OriginalPaper 01 September 1969 Pages: 293 - 307
A theoretical contribution to block analytical aerotriangulation Zbyněk Maršík Shorter Contributions 01 September 1969 Pages: 321 - 325
Inversion of the geomagnetic field determined by palaeomagnetic investigations of quaternary sediments Alois Kočí Shorter Contributions 01 September 1969 Pages: 326 - 331
Report on the symposium “exchange of experience with tiltmeter observations and a critical analysis of their physical significance Jan Pícha News 01 September 1969 Pages: 332 - 334