AUTHOR: Fajklewicz, Z. J.
     TITLE: Gravity vertical gradient measurements for the detection of
            small geologic and anthropogenic forms
    SOURCE: Geophysics, v.41, n.5, p.1016-1030
      YEAR: 1976
  PUB TYPE: Serial, Analytic
    FORMAT: illus., table
     CODEN: GPYSA7
MAJOR DESC: geophysical methods
DESCRIPTOR: gravity methods; instruments; gravimeters; towers; ground;
            gradient; vertical; measurement; techniques; applications