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  _  __     ___     __   _    __   __   _    _   
 | |/ //   / _ \\  | || | ||  \ \\/ // | |  | || 
 | ' //   / //\ \\ | '--' ||   \ ` //  | |/\| || 
 | . \\  |  ___  ||| .--. ||    | ||   |  /\  || 
 |_|\_\\ |_||  |_|||_|| |_||    |_||   |_// \_|| 
 `-` --` `-`   `-` `-`  `-`     `-`'   `-`   `-`

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Text this: Potential Theory in Applied Geophysics