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

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Text this: Satellite Orbits [electronic resource] : Models, Methods and Applications / by Oliver Montenbruck, Eberhard Gill.