AUTHOR: Thyssen-Bornemisza, S.; Fajklewicz, Z. J.
     TITLE: Gravity vertical gradient measurements for the detection of
            small geologic and anthropogenic forms
TITLE NOTE: Discussion and reply; for reference to paper by Fajklewicz, Z.
            J., see Geophysics, October 1976
    SOURCE: Geophysics, v.42, n.4, p.872-876
REFERENCES: 22
      YEAR: 1977
CNTRY PUBL: United States
  PUB TYPE: Serial, Analytic
    FORMAT: illus.
     CODEN: GPYSA7
MAJOR DESC: geophysical methods
DESCRIPTOR: gravity methods; techniques; evaluation; economics