Co-usage of papers

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

ucpjpolecv:88:y:1980:i:5:p:941-57 (2 access) related documents:

ucpjpolecv:78:y:1970:i:1:p:27-34 access 2 commun 2 relatness 1

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