In dictionaries:
Jef Raskin
Creator of Apple Macintosh project.
Jef Geeraerts
Jozef Adriaan Anna Geeraerts (23 February 1930 – 11 May 2015), better known as Jef Geeraerts, was a Belgian writer.
JEF United Chiba
, full name and also known as , is a Japanese professional football club based in Chiba, capital of Chiba Prefecture.
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