Well you can't call them but here is their paper on pagerank http://ilpubs.stanford.edu:8090/422/ http://ilpubs.stanford.edu:8090/422/ There is a short mentio

Well you can't call them but here is their paper on pagerank http://ilpubs.stanford.edu:8090/422/ http://ilpubs.stanford.edu:8090/422/ There is a short mention of previous work done with academic citation analysis and there is also a bit at the end about the original purpose of the algorithm (displaying ranked backlinks.)