%0 Journal Article %D 2013 %T A Field Experiment on Using Messaging and Virtual Rewards to Increase User Participation on NanoHUB.org %A Samek, Anya %A Klimeck, Gerhard %Z (May 13, 2013). Available at SSRN: https://ssrn.com/abstract=2344049 or http://dx.doi.org/10.2139/ssrn.2344049