@Book{OL2067376M,
    title: {The essential Calvin and Hobbes},
    author: {Bill Watterson},
    publisher: {Andrews and McMeel},
    year: {1988},
    place: {Kansas City, MO},
}

@Author{OL461054A,
    name: {Bill Watterson},
    birth_date: {5 July 1958}
}