Co-usage of papers

Number of sessions analized: 69179 (we exclude session that access less than 2 papers or articles)

ucpjpolecv:78:y:1970:i:3:p:572-85 (2 access) related documents:

oupoxfordv:13:y:1997:i:04:p:29-42 access 1 commun 1 relatness 0.5

Done at: 2002-04-15 10:19:14