@article{qiu:jss:2017,
title = "Understanding the syntactic rule usage in java ",
journal = "Journal of Systems and Software ",
volume = "123",
number = "",
pages = "160 - 172",
year = "2017",
note = "",
issn = "0164-1212",
doi = "https://doi.org/10.1016/j.jss.2016.10.017",
url = "http://www.sciencedirect.com/science/article/pii/S0164121216302126",
author = "Dong Qiu and Bixin Li and Earl T. Barr and Zhendong Su",
keywords = "Language syntax",
keywords = "Empirical study",
keywords = "Practical language usage "
}