@book{simon96artificial,
        title = {The Sciences of the Artificial},
        address = {Cambridge, MA, USA},
        author = {H. A. Simon},
        edition = {third},
        publisher = {MIT Press},
        year = 1996,
        biburl = {http://www.bibsonomy.org/bibtex/2a2a070a444033efe42447db739130d47/sb3000},
	keywords = {ai book seminal}
}

@article{newell82knowledgelevel,
        title = {The Knowledge Level},
        author = {A. Newell},
        journal = {Artificial Intelligence},
        pages = {87--127},
        volume = 18,
        year = 1982,
        biburl = {http://www.bibsonomy.org/bibtex/22b48b0b5da62484251a84a65e3875a4e/sb3000},
	keywords = {knowledge ai}
}