TY - JOUR AU - V. M. Arakelyan AU - V. M. Harutyunyan AU - A. G. Sarkisyan AU - G. M. Stepanyan AU - V. L. Elbakyan TI - The synthesis and the investigation of TiO$_2$--MnO$_2$ JO - Proceedings of the Yerevan State University. Physical and mathematical sciences PY - 1986 SP - 69 EP - 74 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/UZERU_1986_3_a10/ LA - ru ID - UZERU_1986_3_a10 ER -