Text this: Three-Dimensional Magnetotelluric Inversion: An Introductory Guide for Developers and Users

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