These are some articles that came out at the time Grease was released and rereleased.

UK 1978-10
Photoplay - cover and pics.
US 1978-09
Pizzazz cover and one page of Grease pictures
UK 1978/1979
Look-in - 1978 and 1979 Grease articles
DE 1978-07-20
Rocky - cover and double page German article with pics
US 1978-07
Crawdaddy - cover and pics.
US 1978-05-30
US - cover and six page article about Grease
US 1978-03
US 1978-02
US 1978-10
Teen Stars - one page
UK 1978
US 1998-04-13
People - Grease special