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Smoke-Free Laws and Direct Democracy Initiatives on Smoking Bans in Germany: A Systematic Review and Quantitative Assessment [journal article]
Source: International Journal of Environmental Research and Public Health, 11 (2014) 1. p.685-700
Analyzing Personal Happiness from Global Survey and Weather Data: A Geospatial Approach [journal article]
Source: PLOS ONE, 11 (2016) 4. p.17