Observateurs

• 

  Tyree Wolinski

  https://www.quora.com/profile/%EC%8A%88%EC%96%B4%EB%A7%A8/%EA%B2%80%EC%A6%9D%EB%90%9C-%EB%A9%94%EC%9D%B4%EC%A0%80%ED%86%A0%ED%86%A0-%EB%B3%B4%EC%A6%9D%EC%97%85%EC%B2%B4-%EC%B6%94%EC%B2%9C