@Work{OL16790605W,
    title: {Spevy Sama Chalúpky},
    author: {Samo Chalupka},
    first_publish_year: {1868}
}

@Author{OL1631433A,
    name: {Samo Chalupka},
    birth_date: {27 February 1812}
    , death_date: {19 May 1883}
}