Text this: Mechanical and radiation shielding properties of flexible material based on natural rubber/ Bi<inf>2</inf>O<inf>3</inf> composites

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