أرسل هذا في رسالة قصيرة: Characterization of Ba<inf>0.77</inf>Sr<inf>0.23</inf>TiO<inf>3</inf> powder prepared from an oxalate co-precipitation and an impregnation method

            ______   __   __    _____     ______  
  ____     /_   _//  \ \\/ //  |  ___||  /_   _// 
 |    \\    -| ||-    \   //   | ||__    `-| |,-  
 | [] ||    _| ||_    / . \\   | ||__      | ||   
 |  __//   /_____//  /_//\_\\  |_____||    |_||   
 |_|`-`    `-----`   `-`  --`  `-----`     `-`'   
 `-`