@inproceedings{Botin_an_2013,
    doi = {10.1145/2429069.2429123},
    url = {https://doi.org/10.1145%2F2429069.2429123},
    year = {2013},
    month = {jan},
    publisher = {{ACM}},
    author = {Matko Botin{\v{c}}an and Domagoj Babi{\'{c}}},
    title = {Sigma},
    booktitle = {Proceedings of the 40th annual {ACM} {SIGPLAN}-{SIGACT} symposium on Principles of programming languages}
}

@inproceedings{Botin_an_2013, doi = {10.1145/2429069.2429123}, url = {https://doi.org/10.1145%2F2429069.2429123}, year = {2013}, month = {jan}, publisher = {{ACM}}, author = {Matko Botin{\v{c}}an and Domagoj Babi{\'{c}}}, title = {Sigma}, booktitle = {Proceedings of the 40th annual {ACM} {SIGPLAN}-{SIGACT} symposium on Principles of programming languages} }