Observateurs

• 

  Morris Gross

  https://gymazx.com/%ec%b9%b4%ec%a7%80%eb%85%b8%ec%82%ac%ec%9d%b4%ed%8a%b8-%ec%98%a8%eb%9d%bc%ec%9d%b8-%eb%8f%84%eb%b0%95%ec%9d%98-%ec%a4%91%ec%8b%ac%ec%9c%bc%eb%a1%9c-%eb%96%a0%ec%98%a4%eb%a5%b4%eb%8b%a4/