Co-usage of papers

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

ucpjnlbusv:63:y:1990:i:1:p:S71-91 (2 access) related documents:

sprjoecthv:11:y:1998:i:2:p:275-294 access 1 commun 1 relatness 0.5

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