@inproceedings{Lerner_2015,
    doi = {10.1145/2702123.2702302},
    url = {https://doi.org/10.1145%2F2702123.2702302},
    year = {2015},
    month = {apr},
    publisher = {{ACM}},
    author = {Sorin Lerner and Stephen R. Foster and William G. Griswold},
    title = {Polymorphic Blocks},
    booktitle = {Proceedings of the 33rd Annual {ACM} Conference on Human Factors in Computing Systems}
}

@inproceedings{Lerner_2015, doi = {10.1145/2702123.2702302}, url = {https://doi.org/10.1145%2F2702123.2702302}, year = {2015}, month = {apr}, publisher = {{ACM}}, author = {Sorin Lerner and Stephen R. Foster and William G. Griswold}, title = {Polymorphic Blocks}, booktitle = {Proceedings of the 33rd Annual {ACM} Conference on Human Factors in Computing Systems} }