%0 Journal Article %T Structure Stability and Oxygen Permeability of Perovskite-type Oxides of Ba0:5Sr0:5Co0:8Fe0:1R0:1O3¡± (R=Al, Mn, Fe, Ce, Cr, Ni, Co) %A Ensieh Ganji Babakhani %A Jafar Towfighi %A Laleh Shirazi %A Nakhaei Pour, Ali %A Akbar Zamaniyan %A Zahra Shafaei %J Journal of Materials Science and Technology %@ 1005-0302 %D 2012