Publications
Zani, Bruna, Maria Grazia Carelli, Beatrice Benelli and Elvira Cicognani. 1991. Communicative skills in childhood: The case of twins. Discourse Processes 14 (3) : 339–356.
Billman, Dorrit and Marilyn Shatz. 1984. Interactive devices of two-year-old dyads: A twin and nontwin comparison. Discourse Processes 7 : 301–319.