Number of sessions analized: 69179 (we exclude session that access less than 2 papers or articles)
ecmemetrpv:43:y:1975:i:4:p:739-44 (4 access)
| ecmemetrpv:38:y:1970:i:3:p:559-73 | access 2 | commun 2 | relatness 0.5 |
| ecmemetrpv:37:y:1969:i:4:p:721-25 | access 2 | commun 2 | relatness 0.5 |