Science (2) Ciencias (2) sciences (2) Internet (1) Thesauri (1) Paper (1) Memory (1) Grammar, Comparative and general--Noun (1) Communication (1) Collective settlements (1) Boundaries (1) Mapas conceptuales (1) Sustantivo (1) Comunidades (1) Internet (1) Identidad (1) Fronteras (1) Tesauros (1) Información (1) Papel (1) Memoria (1) Comunicación (1) identité (1) nécessité (1) frontière (1)