BibTeX-Format:
@inbook{ year = {2006}, typ = {inbook}, title = {{N}ull arguments in monolingual children: {A} comparison of {I}talian and {F}rench}, booktitle = {{T}he {A}cquisition of {S}yntax in {R}omance {L}anguages}, author = {Müller, Natascha, Schmitz, Katrin, Cantone, Katja