00349nam a2200145Ia 4500008004100000082001600041100001600057245002400073260003300097300000800130650001200138650001800150653001600168700001900184170901s1966    xx            000 0 und d  a531.5bS16G  aSazhina, N. 0aGravity Prospecting  aMoscowbMir Publishersc1966  a491  aPhysics  aPure Sciences  aGravitation  aGrushinsky, N.