Probable evidence for periodicities in global seismic energy release Ioannis LiritzisTheodoros M. Tsapanos OriginalPaper Pages: 93 - 108
Stratospheric ozone variations in the northern and the southern hemisphere during the period 1957–1990 John XanthakisConstantine PoulakosChristos S. Zerefos OriginalPaper Pages: 109 - 125
Newtonian and post-newtonian tidal theory: Variable G and earthquakes D. D. DionysiouE. N. SarrisG. A. Papadopoulos OriginalPaper Pages: 127 - 140
The construction of a seventh-order Jupiter-Saturn analytical theory Osman M. KamelAdel S. Soliman OriginalPaper Pages: 141 - 175
Registration of minute variations of the gravitational potential first derivative A. P. Trofimenko Letter to the Editor Pages: 177 - 179
Porosity of the primal regolith of Mars and implications for the origin of runoff channels and the state of the paleoclimate Kent D. Trego Letter to the Editor Pages: 181 - 182