@book{knuth1989concrete,
        title = {Concrete Mathematics: A Foundation for Computer Science},
        address = {Reading},
        author = {Ronald L. Graham and Donald E. Knuth and Oren Patashnik},
        publisher = {Addison-Wesley},
        year = 1989,
        biburl = {http://www.bibsonomy.org/bibtex/2ccef670ef39186763ecd379d2cca1e0a/jaeschke},
	keywords = {computer latex knuth mathematics science}
}