BibTeX-Format:
@inbook{ address = {Cambridge}, year = {2009}, booktitle = {{T}he {H}andbook of {C}ode-switching}, chapter = {12}, title = {{L}anguage mixing in bilingual children: code-switching?}, typ = {inbook}, pages = {199-220}, publisher = {Cambridge University Press}, bookauthor = {Barbara E. Bullock