IDRelationTitle19640001749WorkVery large and large geomagnetic storms and some problems in their theory19640001750WorkAnalysis of latitudinal variation in the yearly course of magnetic activity19640001751WorkSynoptic charts of magnetic disturbance in the arctic19640001752WorkSome of the pecularities of variations in the vertical component of the magnetic field of the earth in the artic ocean19640001753WorkOn the nature of the coastal effect19640001754WorkStationary microvariation station with photoelectronic amplification19640001755WorkSecular variations of the geomagnetic field of the east antarctic