Abstract:
A reply to critical comments by A. F. Krupnov and M. Yu. Tretyakov (Usp. Fiz. Nauk179 1363 (2009) [Phys. Usp.52 (12) (2009)]) and M. A. Bol'shov, A. A. Makarov and V. R. Mironenko (Usp. Fiz. Nauk179 1368 (2009) [Phys. Usp.52 (12) (2009)]) on a paper by the present authors (Usp. Fiz. Nauk176 883 (2006) [Phys. Usp.49 (8) 855 (2006)]) is made.