Per Year

@incollection{ctxlp-elpIII,
   acm = {736334},
   author = {Denti, Enrico and Lamma, Evelina and Mello, Paola and Natali, Antonio and Omicini, Andrea},
   booktitle = {Extensions of Logic Programming},
   dblp = {conf/elp/DentiLMNO92},
   doi = {10.1007/3-540-56454-3_17},
   editor = {Lamma, Evelina and Mello, Paola},
   eisbn = {978-3-540-47562-0},
   isbn = {978-3-540-56454-6},
   isbn-10 = {3-540-56454-3},
   isbn10 = {3-540-56454-3},
   issn = {0302-9743},
   keywords = {Virtual Machine, Logic Program, Logic Programming, Hypothetical Reasoning, Program Clause},
   note = {3rd International Workshop (ELP'92), Bologna, Italy, 26--28~} # feb # {~1992. Proceedings},
   pages = {339--358},
   publisher = {Springer},
   scopus = {2-s2.0-85028860344},
   series = {Lecture Notes in Computer Science},
   subseries = {Lecture Notes in Artificial Intelligence},
   title = {Techniques for Implementing Contexts in {L}ogic {P}rogramming},
   url = {http://link.springer.com/10.1007/3-540-56454-3_17},
   volume = 660,
   year = 1993
}

@incollection{oolp-plilp93,
   acm = {692617},
   author = {Natali, Antonio and Omicini, Andrea},
   booktitle = {Programming Language Implementation and Logic Programming},
   dblp = {conf/plilp/NataliO93},
   doi = {10.1007/3-540-57186-8_81},
   editor = {Bruynooghe, Maurice and Penjam, Jaan},
   eisbn = {978-3-540-47945-1},
   isbn = {978-3-540-57186-5},
   isbn-10 = {978-3-540-57186-5},
   isbn10 = {3-540-57186-8},
   issn = {0302-9743},
   note = {5th International Symposium (PLILP'93), Tallinn, Estonia, 25--27~} # aug # {~1993. Proceedings},
   pages = {220--234},
   publisher = {Springer-Verlag},
   scopus = {2-s2.0-21144462602},
   series = {Lecture Notes in Computer Science},
   title = {Objects with State in {C}ontextual {L}ogic {P}rogramming},
   url = {http://link.springer.com/10.1007/3-540-57186-8_81},
   volume = 714,
   year = 1993
}