1. Towards an improved realization of the BIH terrestrial frame;Boucher,1985
2. Status of the realization of the BIH terrestrial system;Boucher,1986
3. Complement of analysis of BIH terrestrial system for 1986;Boucher
4. Realization of the BIH terrestrial system;Boucher,1984
5. Reference frames : determinations and connections;Dickey,1986