D. P. Hajela
A simulation study to test the prediction of 1℗ʻ x 1℗ʻ mean gravity anomalies using least squares collocation from the GRAVSAT mission
Adjustment of mean earth ellipsoid parameters
Improved procedures for the recovery of 5℗ʻ mean gravity anomalies from ATS-6/GEOS-3 satellite to satellite range-rate observations using least squares collocation
Optimal estimation of high degree gravity field from a global set of 1℗ʻ x 1℗ʻ anomalies to degree and order 250
Recovery of 5℗ʻ mean gravity anomalies in local areas from ATS-6/GEOS03 satellite to satellite range-rate observations