@inproceedings{Wadler:1990:CM:91556.91592,
    Address = {New York, NY, USA},
    Author = {Wadler, Philip},
    BookTitle = {Proceedings of the 1990 ACM Conference on LISP and Functional Programming},
    File = {wadler1992 (0) - a - a - y.pdf},
    ISBN = {0-89791-368-X},
    Location = {Nice, France},
    Pages = {61--78},
    Publisher = {ACM},
    Series = {LFP '90},
    Title = {Comprehending Monads},
    URL = {http://doi.acm.org/10.1145/91556.91592},
    Year = {1990},
    acmid = {91592},
    bdsk-url-1 = {http://doi.acm.org/10.1145/91556.91592},
    bdsk-url-2 = {https://dx.doi.org/10.1145/91556.91592},
    date-added = {2018-03-19 20:59:39 +0000},
    date-modified = {2018-03-19 20:59:39 +0000},
    file-2 = {WadlerMonads (0) - a - a - y.pdf},
    numpages = {18},
    doi = {10.1145/91556.91592}
}

@inproceedings{Wadler:1990:CM:91556.91592, Address = {New York, NY, USA}, Author = {Wadler, Philip}, BookTitle = {Proceedings of the 1990 ACM Conference on LISP and Functional Programming}, File = {wadler1992 (0) - a - a - y.pdf}, ISBN = {0-89791-368-X}, Location = {Nice, France}, Pages = {61--78}, Publisher = {ACM}, Series = {LFP '90}, Title = {Comprehending Monads}, URL = {http://doi.acm.org/10.1145/91556.91592}, Year = {1990}, acmid = {91592}, bdsk-url-1 = {http://doi.acm.org/10.1145/91556.91592}, bdsk-url-2 = {https://dx.doi.org/10.1145/91556.91592}, date-added = {2018-03-19 20:59:39 +0000}, date-modified = {2018-03-19 20:59:39 +0000}, file-2 = {WadlerMonads (0) - a - a - y.pdf}, numpages = {18}, doi = {10.1145/91556.91592} }