The C03 Project examines variation in the encoding of prominence by analyzing the production of referring expressions in discourse by bilingual children. Two focus aspects: a) different bilingual profiles in terms of language and literacy exposure have a varying impact on bilinguals' cognitive and linguistic skills, b) different language combinations (English-Greek, English-Italian, Greek-Italian) give rise to diverse patterns of cross-linguistic influence. The aim of this project is to show how both aspects of variation are reflected in individual strategies of reference production.