Number of sessions analized: 69179 (we exclude session that access less than 2 papers or articles)
ucpjpolecv:98:y:1990:i:2:p:265-94 (2 access)
| sprpresciv:78:y:1999:i:1:p:89-100 | access 1 | commun 1 | relatness 0.5 |
| ucpjpolecv:97:y:1989:i:3:p:721-39 | access 1 | commun 1 | relatness 0.5 |