@inproceedings{MartinHJSZ2015,
 author = {Martin, William and Harman, Mark and Jia, Yue and Sarro, Federica and Zhang, Yuanyuan},
 title = {The App Sampling Problem for App Store Mining},
 booktitle = {Proceedings of the 12th Working Conference on Mining Software Repositories},
 series = {MSR '15},
 year = {2015},
 location = {Florence, Italy},
 pages = {123--133},
 numpages = {11},
 url = {http://dl.acm.org/citation.cfm?id=2820518.2820535},
 acmid = {2820535},
 publisher = {IEEE Press},
 address = {Piscataway, NJ, USA},
}