أرسل هذا في رسالة قصيرة: Estimation of closed-form least-squares source location from range-difference measurements

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