BibTeX-Format:
@incollection{ title = {{T}he acquisition of {S}panish in a bilingual and in a trilingual setting: {C}ombining {S}panish with {G}erman, {F}rench and {C}atalan}, typ = {incollection}, booktitle = {{T}he {A}cquisition of {S}panish in {A}dult and {C}hild {B}ilingualism: {D}ata from {U}nderstudied {L}anguage {P}airings}, author = {Arnaus Gil, Laia