Observadores

• 

  Leopoldo Schnaars

  https://snterra.com/%ED%86%A0%ED%86%A0%EC%82%AC%EC%9D%B4%ED%8A%B8%EC%9D%98-%EC%84%B8%EA%B3%84%EC%99%80-%EA%B7%B8-%ED%8A%B9%EC%A7%95/