Sensing atmospheric structure: Tropospheric tomographic results of the small-scale GPS campaign at the Onsala Space ObservatoryDOI: info:10.1186/BF03352309v. 52Springer941–945
Flores, A., Gradinarsky, L. P., Elósegui, P., Elgered, G., Davis, J. L., and Rius, A. 2000. "Sensing atmospheric structure: Tropospheric tomographic results of the small-scale GPS campaign at the Onsala Space Observatory." Earth, Planets and Space, 52 941–945. https://doi.org/10.1186/BF03352309.