@Work{OL2918205W,
    title: {Managerial economics},
    author: {Paul G. Keat and Philip K. Y. Young},
    first_publish_year: {1992}
}

@Author{OL444496A,
    name: {Paul G. Keat},
}
@Author{OL721249A,
    name: {Philip K. Y. Young},
}