Per Year

@book{cole1978mind,
    apice = {Atbook78},
    author = {Vygotsky, Lev Semyonovich},
    editor = {Michael Cole and Vera John-Steiner and Sylvia Scribner and Ellen Souberman},
    publisher = {Harvard University Press},
    subtitle = {Development of Higher Psychological Processes},
    title = {Mind in Society},
    year = 1978
}

@article{lamport-acmcomm21,
    address = {New York, NY, USA},
    apice = {LamportAcmcomm21},
    author = {Lamport, Leslie},
    doi = {10.1145/359545.359563},
    issn = {0001-0782},
    journal = {Communications of the ACM},
    number = 7,
    pages = {558--565},
    publisher = {ACM},
    title = {Time, Clocks, and the Ordering of Events in a Distributed System},
    url = {359563},
    volume = 21,
    year = 1978
}

@book{activitytheory-book78,
    apice = {ActivitytheoryBook78},
    author = {Vygotskiĭ, Lev Semenovich},
    booktitle = {Mind in Society: Development of Higher Psychological Processes},
    editor = {Cole, Michael and John-Steiner, Vera and Scribner, Sylvia and Souberman, Ellen},
    isbn = {978-0-674-57629-2},
    isbn10 = {0-674-57629-2},
    numpages = 176,
    publisher = {Harvard University Press},
    title = {Mind in Society: Development of Higher Psychological Processes},
    url = {http://www.hup.harvard.edu/catalog/VYGMIX.html},
    year = 1978
}

@article{multiple-ipl1978,
    apice = {MultipleIpl1978},
    author = {Maurelio Boari and Natali, Antonio},
    doi = {10.1016/0020-0190(78)90056-X},
    issn = {0020-0190},
    journal = {Information Processing Letters},
    number = 2,
    numpages = 10,
    pages = {112--121},
    publisher = {Elsevier BV},
    title = {Multiple Access to a Tree in the Context of Readers and Writers Problem},
    volume = 7,
    year = 1978
}