Number of sessions analized: 69179 (we exclude session that access less than 2 papers or articles)
wdipapers2001-371 (2 access)
| aeaaecrevv:71:y:1981:i:3:p:515-16 | access 1 | commun 1 | relatness 0.5 |
| aeajecperv:9:y:1995:i:2:p:169-89 | access 1 | commun 1 | relatness 0.5 |