أرسل هذا في رسالة قصيرة: Erratum: Effect of rare-earth (Re = La, Nd, Ce and Gd) doping on the doping piezoelectric of PZT (52:48) ceramics (International Journal of Modern Physics B (2007) 21:26 (4549-4559))

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