Barbara Hofer 
On the Dynamics of Early Multilingualism [PDF ebook] 
A Psycholinguistic Study

This book contributes to current issues in TLA and multilingualism research. It discusses multilingual learning and development from a Dynamic Systems Theory perspective. The author argues that trilingual education does not harm or confuse young learners but that the teaching of three languages from an early age carries positive implications for children”s linguistic, metalinguistic, and crosslinguistic awareness.