Peculiarities in low temperature properties of doped manganites A1-xBxMnO3 M. O. Dzero, L. P. Gor'kov and V. Z. Kresin Eur. Phys. J. B, 14 3 (2000) 459-471 Published online: 15 April 2000 DOI: 10.1007/s100510051054