BibTeX-Format:
@incollection{ pages = {191-209}, publisher = {Lang}, year = {2014}, address = {Frankfurt am Main}, typ = {incollection}, title = {{C}hild-external and -internal factors in bilingual code-switching: {S}panish, {I}talian, {F}rench and {G}erman}, editor = {Amei Koll-Stobbe