Sprinz, D. (1990). Environmental Concern and Environmental Action in Western Europe: Concepts, Measurements, and Implications. IIASA Working Paper. IIASA, Laxenburg, Austria: WP-90-014
Sprinz, D. (1990). International Environment Threats through Transboundary Acidification: Nation-Level Positions within the International Environmental Structure. IIASA Working Paper. IIASA, Laxenburg, Austria: WP-90-013