Number of sessions analized: 69179 (we exclude session that access less than 2 papers or articles)
ucpjnlbusv:63:y:1990:i:4:p:439-64 (2 access)
| ouprfinstv:7:y:1994:i:2:p:253-77 | access 3 | commun 2 | relatness 0.67 |
| ouprfinstv:5:y:1992:i:3:p:437-70 | access 1 | commun 1 | relatness 0.5 |