21 Jul 2003 / In the book in Russian "Searches for a mechanism of gravity", Eds. M.A. Ivanov and L.A. Savrov, Nizhny Novgorod, Yu.A. Nickolaev Publisher, 2004, pp 274-281
26 May 2001 / Proceedings of the Seventh Marcel Grossmann Meeting (Stanford 1994), Eds. R.T Jantzen and G.M. Keiser, World Scientific, Singapore, 1996, pp. 133-152
15 Dec 2000 / Proceedings of the Ninth Marcel Grossmann Meeting on General Relativity, edited by V.G. Gurzadyan, R.T. Jantzen and R. Ruffini,World Scientific, Singapore, p. 1913 (2002)
9 Dec 2000 / Proceedings of the Ninth Marcel Grossmann Meeting on General Relativity, edited by R.T. Jantzen, V. Gurzadyan and R. Ruffini, World Scientific, Singapore, pp.2009 (2002)