Tanner, Harold Miles. China: A History. Indianapolis, Indiana: Hackett Publishing Company. 2009. ISBN 978-0-87220-915-2. p.522. Retrieved 13 December 2011.
google.co.uk
Lusby gives "Dongbei Ren Dang Huo Lei Feng", which would almost certainly transliterate to 東北人当活雷锋. As of September 2007, this had two Google hits compared to 128,000 for 東北人都是活雷鋒.