Co-usage of papers

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

ucpjpolecv:81:y:1973:i:2:p:442-49 (2 access) related documents:

ucpjpolecv:82:y:1974:i:4:p:783-802 access 1 commun 1 relatness 0.5

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