@book { ACaseStudyonTrilingualSiblingsCodeSwitching,
    title = "A Case Study on Trilingual Siblings’ Code Switching",
    author = "Jaewon {Nielbock-Yoon}",
    year = "2017",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b11988",
    url = "https://www.peterlang.com/document/1061461"
}