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  _____     _____     _  _    _    _             
 / ____||  |  ___||  | \| || | || | ||   ____    
/ //---`'  | ||__    |  ' || | || | ||  |    \\  
\ \\___    | ||__    | .  || | \\_/ ||  | [] ||  
 \_____||  |_____||  |_|\_||  \____//   |  __//  
  `----`   `-----`   `-` -`    `---`    |_|`-`   
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Text this: Potential Theory in Applied Geophysics