@Book{OL421512M,
    title: {Spiritual disciplines for the Christian life},
    author: {Donald S. Whitney},
    publisher: {NavPress},
    year: {1997},
    place: {Colorado Springs, Colo},
}

@Work{OL498556W,
    title: {The Metamorphosis},
    author: {Franz Kafka},
    first_publish_year: {1915}
}

@Author{OL33146A,
    name: {Franz Kafka},
    birth_date: {3 July 1883}
    , death_date: {3 June 1924}
}