Qinyuan Feng Ling Liu 0001 Yafei Dai Vulnerabilities and countermeasures in context-aware social rating services. 11:1-11:27 2012 11 ACM Trans. Internet Techn. 3 https://doi.org/10.1145/2078316.2078319 https://www.wikidata.org/entity/Q130924249 db/journals/toit/toit11.html#FengLD12