@Book{OL31973527M,
    title: {The Fellowship of the Ring},
    author: {J.R.R. Tolkien},
    publisher: {Houghton Mifflin Company},
    place: {Boston},
}

@Book{OL24374159M,
    title: {La llamada de lo salvaje},
    author: {Jack London and Marie de France and Elizabeth Marshall Thomas and A. G. Rochelle and Julius Lester and Sally Carrighar and Robert Murphy},
    publisher: {McDougal Littell},
    year: {1997},
    place: {Evanston, Illinois, United States of America},
}

@Book{OL25890420M,
    title: {La camarera},
    author: {James M. Cain},
    publisher: {RBA Libros, S.A.},
    year: {2014},
    place: {Madrid, España},
}

@Book{OL26730407M,
    title: {Coraline: Der Roman zum Film},
    author: {Neil Gaiman},
    publisher: {Arena Verlag.},
    year: {2009},
}

@Author{OL53305A,
    name: {Neil Gaiman},
    birth_date: {10 November 1960}
}