Flying - junho 1957

Flying - junho 1957

https://books.google.pt/books?id=1rtoulxFpnsC&printsec=frontcover&hl=pt-PT&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=true

Aeromodeller - abril 1961

Aeromodeller - abril 1961

http://www.aeromodeller.info/Magazine%20Scans/am_zip/aeromodeller6104.zip

Model Aviation - junho 1986

Model Aviation - junho 1986

http://library.modelaviation.com/ma/1986/6

Air Pictorial and Air Gazette - janeiro 1958

Air Pictorial and Air Gazette - janeiro 1958

http://www.rclibrary.co.uk/files_titles/1669/AirPic_AirReserve_Gazette_1958_01.pdf

Popular Mechanics - janeiro 1987

Popular Mechanics - janeiro 1987

https://books.google.pt/books?id=GOMDAAAAMBAJ&printsec=frontcover&hl=pt-PT&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=true