Per Year

 @incollection{oolp-ilps94,
    author = {Denti, Enrico and Natali, Antonio and Omicini, Andrea},
    booktitle = {Implementations of Logic Programming Systems},
    dblp = {conf/iclp/DentiNO93},
    doi = {10.1007/978-1-4615-2690-2_7},
    editor = {Tick, Evan and Succi, Giancarlo},
    eisbn = {978-1-4615-2690-2},
    eissn = {978-1-4615-2690-2},
    iris = {11585/951126},
    isbn = {978-1-4613-6157-2},
    isbn10 = {0-7923-9457-7},
    issn = {978-1-4613-6157-2},
    keywords = {contextual logic programming; modules; structured theories},
    pages = {89--101},
    publisher = {Kluwer Academic Publishers},
    title = {Moving {P}rolog Toward Objects},
    url = {http://link.springer.com/10.1007/978-1-4615-2690-2_7},
    wos = {A1994BB31B00007},
    year = 1994
}