Per anno

 @incollection{ascribingmental-mccarthy1979,
	Address = {Brighton},
	Author = {McCarthy, John},
	Booktitle = {Philosophical Perspectives in Artificial Intelligence},
	Editor = {Ringle, Martin},
	Isbn = {085527901X},
	Pages = {161--195},
	Publisher = {Harvester Press},
	Series = {Harvester Studies in Cognitive Science},
	Title = {Ascribing Mental Qualities to Machines},
	Url = {http://www-formal.stanford.edu/jmc/ascribing/ascribing.html},
	Year = 1979} 

 @article{paradigm-cacm22,
	Address = {New York, NY, USA},
	Author = {Floyd, Robert W.},
	Doi = {10.1145/359138.359140},
	Month = aug,
	Note = {1978 ACM Turing Award Lecture},
	Number = 8,
	Publisher = {ACM},
	Url = {http://dl.acm.org/doi/abs/10.1145/359138.3591404},
	urlpdf = {http://dl.acm.org/doi/pdf/10.1145/359138.359140},
	Title = {The Paradigms of Programming},
	Volume = 22,
	Year = 1979}