Modification Of Sporadic E-Layers Caused By Seismic Activity V.A. LiperovskyO.A. PokhotelovO.A. Alimov OriginalPaper Pages: 449 - 486
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Short Period Variations In Earth Rotation As Seen By VLBI Harald SchuhHarald Schmitz-Hübsch OriginalPaper Pages: 499 - 520
The International Latitude Service – A Historical Review, From The Beginning To Its Foundation In 1899 And The Period Until 1922 Joachim Höpfner OriginalPaper Pages: 521 - 566
A Geophysical Study Of The Ophiolite Complex And The Sedimentary Basins In The Northwest Part Of The Chalkidiki Peninsula (N. Greece) A.S. SavvaidisG.N. TsokasD. Kondopoulou OriginalPaper Pages: 567 - 595