An empirical assessment of refraction error in leveling as a function of survey order and environment : an analysis of the results of three North Anerican field experiments designed to measure the systematic component of the atmospheric refraction error in leveling /
Castle, Robert O.
Mark, Robert K.
Shaw, Roger H.
Washington : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey, Map Distribution,
1994.
Includes bibliographical references (p. 49-50).
Leveling.
Refraction.
Surveying.