Coverage and Performance Predictions for the North-West European Loran-C System. - David Last; Mark Searle; Richard Farnworth (Simul., 1993)

EGNOS test bed ionospheric corrections under the October and November 2003 storms. - Manuel Hernández-Pajares; José Miguel Juan Zornoza; Jaume Sanz Subirana; Richard Farnworth; Santiago Soley (IEEE Trans. Geosci. Remote. Sens., 2005)