@book { IntroductiontoManyFacetRaschMeasurement,
    title = "Introduction to Many-Facet Rasch Measurement",
    author = "Thomas {Eckes}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04844-5",
    url = "https://www.peterlang.com/document/1045610"
}