Аннотация:Barkin Yu.V., Ferrandiz J.M., Zotov L.V. (2008) Semi-empirical model of free and forced Mercury librations in longitude on the data of ground radar-tracking observations // Abstract Book (CD) of European Planetary Science Congress (Munster, Germany, 21 – 26 September 2008). 2008. Vol.3, EPSC 2008-A-00140. 2p.
http://meetingorganizer.copernicus.org/EPSC2009/EPSC2009-00140.pdf.