Mathieu, Paula "The Early Years of Spare Change News: Insights From Its Founding Organizer" Archived 2013-02-23 at Archive.today, Spare Change News, June 15, 2012.
Mathieu, Paula «The Early Years of Spare Change News: Insights From Its Founding Organizer» Архивировано 23 февраля 2013 года., Spare Change News, June 15, 2012.