Gravity disturbances in regions of negative heights : a reference quasi-ellipsoid approachVajda, Peter; Ellmann, Artu; Meurers, B.; Vanicek, P.; Novak, Pavel; Tenzer, RobertStudia geophysica et geodaetica2008 / 1, p. 35-52 : ill https://link.springer.com/article/10.1007/s11200-008-0004-4

Verifying empirical correlations of superelliptic particle lift and drag characteristica using CFDRosendahl, L.; Kaer, S.K.; Condra, T.Tenth Nordic Seminar on Computational Mechanics, Tallinn Technical University, October 24-25, 19971997 / p. 247-250: ill