Per Year

 @incollection{ai-ifipbook2009,
    acm = {10.5555/1793943.1793952},
    author = {Omicini, Andrea and Piunti, Michele and Ricci, Alessandro and Viroli, Mirko},
    booktitle = {Artificial Intelligence: An International Perspective},
    chapter = 9,
    doi = {10.1007/978-3-642-03226-4_9},
    editor = {Bramer, Max},
    eissn = {1611-3349},
    iris = {11585/82470},
    isbn10 = {3-642-03225-7},
    isbn13 = {978-3-642-03225-7},
    issn = {0302-9743},
    pages = {157--173},
    publisher = {Springer},
    scopus = {2-s2.0-70350627497},
    series = {Lecture Notes in Computer Science},
    subseries = {LNAI: State-of-the-Art Survey},
    title = {Agents, Intelligence, and Tools},
    url = {http://link.springer.com/10.1007/978-3-642-03226-4_9},
    volume = 5640,
    wos = {000268976000009},
    year = 2009
}