References: Bonner, A. (2009). Forecasting models for the german office market. Published dissertation, School of Business Administration, Economics Law & Social Science, University of St. Gallen, St. Gallen, Switzerland. Retrieved January 16, 2011 from http://www1.unisg.ch/www/edis.nsf/wwwDisplayIdentifier/3561/$FILE/dis3561.pdf Forecasting (n.d.). Retrieved January 16, 2011 from http://www.uoguelph.ca/~dsparlin/forecast.htm#CAUSAL%20FORECASTING%20METHODS
References: Bonner, A. (2009). Forecasting models for the german office market. Published dissertation, School of Business Administration, Economics Law & Social Science, University of St. Gallen, St. Gallen, Switzerland. Retrieved January 16, 2011 from http://www1.unisg.ch/www/edis.nsf/wwwDisplayIdentifier/3561/$FILE/dis3561.pdf Forecasting (n.d.). Retrieved January 16, 2011 from http://www.uoguelph.ca/~dsparlin/forecast.htm#CAUSAL%20FORECASTING%20METHODS