B. Bertotti,International Conference on General Relativity and Gravitation.International Conference on General Relativity and Gravitation(10th : 1983 : Padua):General relativity and gravitation; Invited papers and dIscussion reports of the 10th International conference.Reidel,1984.
International Conference on General Relativity and Gravitation(10th : 1983 : Padua):General relativity and gravitation; Invited papers and dIscussion reports of the 10th International conference
B. Bertotti,International Conference on General Relativity and Gravitation.Reidel,1984.
E. Schmutzer.International Conference on General Relativity and Gravitation(9th : 1980 : Jena, GDR):proceedings of the 9th International Conference of General Relativity, 14-19 July 1980.The Univ. Pr.,1983.
International Conference on General Relativity and Gravitation(9th : 1980 : Jena, GDR):proceedings of the 9th International Conference of General Relativity, 14-19 July 1980