http://www.acm.org/sigmod/dblp/db/indices/a-tree/n/Norvig:Peter.html http://www.vldb.org/dblp/db/indices/a-tree/n/Norvig:Peter.html http://www.informatik.uni-trier.de/~ley/db/indices/a-tree/n/Norvig:Peter.html http://hpsearch.uni-trier.de/hp/cgi/hps.cgi?Peter+Norvig http://www.informatik.uni-trier.de/~ley/addr.html