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Westerheide, Peter, and Sarah Borgloh. "SOCIAL RETURN ON INVESTMENT OF MUTUAL SUPPORT BASED HOUSING PROJECTS - POTENTIAL FOR SOCIO-ECONOMIC COST SAVINGS AND HIGHER LIVING QUALITY." In 17th Annual European Real Estate Society Conference. ERES: Conference. Milan, Italy, 2010.

Westerheide, Peter. "The Impact of Low-Income Home Owners on the Volatility of Housing Markets." In 16th Annual European Real Estate Society Conference. ERES: Conference. Stockholm, Sweden, 2009.