Electromagnetic field of the earth  proceedings of the Symposium on the Occaion of the 75th Anniversary of the Hurbanovo Geomagnetic Observatory ; Hurbanovo and Smolenice, October 8 - 10, 1975 
edited by Milan Hvozdara 
 - Bratislava  Slovak Academy of Sciences  1978 
 - 193p.  figs; refs 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Solar-terrestrial PhysicsElectromagnetic FieldElectromagnetismGeomagnetic FieldGeomagnetic Instruments
<br/><br/><label>Universal Decimal Class. No.: </label>550.387(063)  / HVO