Co-usage of papers

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

ucpjpolecv:95:y:1987:i:6:p:1278-91 (3 access) related documents:

ucpjpolecv:89:y:1981:i:5:p:959-73 access 3 commun 3 relatness 1

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