1. Gravimetric earth tide observations in western Venezuela;Badell;Marees T. Bull. Inf.,1982
2. International Absolute Gravity Basestation Network [IAG-SSG 3.87 Status Report];Boedecker,1986
3. Establecimiento de la nueva red gravimétrica de estaciones bases de Venezuela;Bravo;Boletin Cartografia y Geodesia (Maracaibo),1989
4. Seismicity and tectonics of western Venezuela;Dewey;Bulletin of the Seismological Society of America,1972
5. Precise Gravimetric Networks and Recent Gravity Changes in Western Venezeula;Drewes,1980