http://dialectblog.com/2011/05/29/the-fargo-accent/

http://en.wikipedia.org/wiki/Upper_Midwest_American_English

http://www.howcast.com/videos/500510-How-to-Do-a-Minnesota-Accent-Accent-Training

http://minnesota.cbslocal.com/2013/08/15/good-question-where-does-the-minnesota-accent-come-from/