@inproceedings{Akerblom:2015:MPP:2816707.2816717,
 author = {\AAkerblom, Beatrice and Wrigstad, Tobias},
 title = {Measuring Polymorphism in Python Programs},
 booktitle = {Proceedings of the 11th Symposium on Dynamic Languages},
 series = {DLS 2015},
 year = {2015},
 isbn = {978-1-4503-3690-1},
 location = {Pittsburgh, PA, USA},
 pages = {114--128},
 numpages = {15},
 url = {http://doi.acm.org/10.1145/2816707.2816717},
 doi = {10.1145/2816707.2816717},
 acmid = {2816717},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {Python, dynamic languages, polymorphism, trace-based analysis},
} 

@article{Akerblom:2015:MPP:2936313.2816717,
 author = {\AAkerblom, Beatrice and Wrigstad, Tobias},
 title = {Measuring Polymorphism in Python Programs},
 journal = {SIGPLAN Not.},
 issue_date = {Feburary 2016},
 volume = {51},
 number = {2},
 month = oct,
 year = {2015},
 issn = {0362-1340},
 pages = {114--128},
 numpages = {15},
 url = {http://doi.acm.org/10.1145/2936313.2816717},
 doi = {10.1145/2936313.2816717},
 acmid = {2816717},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {Python, dynamic languages, polymorphism, trace-based analysis},
}