@Book{OL7931396M,
    title: {Brown Bear, Brown Bear, What Do You See?},
    author: {Bill Martin Jr. and Eric Carle},
    publisher: {Henry Holt and Co. (BYR)},
    year: {1983},
}

@Book{OL19162443M,
    title: {Chicka chicka boom boom},
    author: {Bill Martin Jr. and John Archambault},
    publisher: {Simon \& Schuster Books for Young Readers},
    year: {1989},
    place: {New York},
}

@Author{OL28506A,
    name: {Bill Martin Jr.},
    birth_date: {1916}
    , death_date: {2004}
}
@Author{OL398410A,
    name: {John Archambault},
}