http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Satellite Doppler tracking and its geodetic applications
Royal Society discussion meeting on satellite Doppler tracking and its geodetic applications Londres,GB 1978
Artículos publicados en: "Philosophical Transactions of the Royal Society of London, series A" v.294, [1410] p.209-406