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Bergbau
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keywords:(Bergbau)
LOCAL GEOMAGNETIC FIELD OF THE REPUBLIC OF MACEDONIA
HARMONIC ANALYSIS OF SECULAR CHANGES OF THE ORBITAL PARAMETERS AND GEOMAGNETIC FIELD
GEOPHYSICAL PARAMETERS OF SKOPJE DEPRESSION
GEOMAGNETIC FIELD AND SECULAR VARIATIONS OF THE ASTRONOMICAL PARAMETARS
ELECTROMAGNETIC IMPACT OF TRANSMISSION LINES ON THE ENVIRONMENT