Bone-Winkel, Stephan, and Tobias Pfeffer. "OPPORTUNISTIC REAL ESTATE INVESTMENT - WHAT CAN PROPERTY DEVELOPMENT DO? ." In Book of Abstracts: 13th Annual European Real Estate Society Conference. ERES: Conference. Weimar, Germany, 2006.

Feldmann, Philipp, and Tobias Pfeffer. "TARGET GROUP-SPECIFIC CLUSTERING OF OFFICE TENANTS IN GERMANY - AN EMPIRICAL ANALYSIS ." In Book of Abstracts: 13th Annual European Real Estate Society Conference. ERES: Conference. Weimar, Germany, 2006.