Güth, Werner Max Planck Institute for Research on Collective Goods, Max Planck Society;
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2611613 (Any fulltext)
Di Cagnio, D., Galliera, A., Güth, W., & Panaccione, L. (2015). A Hybrid Public Good Experiment Eliciting Multi-Dimensional Choice Data. Rome: Centre for Economic and International Studies.