أرسل هذا في رسالة قصيرة: Comparative studies of mixed-oxide synthetic routes for the production of ferroelectric PZN-based ceramics

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