Per Year

 @article{turing-plms42,
    author = {Turing, Alan Mathison},
    doi = {10.1112/plms/s2-42.1.230},
    issn = {1460244X},
    journal = {Proceedings of the London Mathematical Society},
    number = 1,
    pages = {230--265},
    publisher = {Oxford University Press},
    title = {On Computable Numbers, with an Application to the Entscheidungsproblem},
    url = {http://plms.oxfordjournals.org/content/s2-42/1/230},
    volume = {s2-42},
    year = 1937
}