@Book{OL22225040M,
    title: {Greece},
    author: {Henri Stierlin and Anne Stierlin},
    publisher: {Taschen},
    year: {2004},
    place: {Köln},
}

@Work{OL1827302W,
    title: {Microbiology},
    author: {Gerard J. Tortora and Berdell R. Funke and Christine L. Case},
    first_publish_year: {1982}
}

@Work{OL2657842W,
    title: {Human Reproductive Biology},
    author: {Sylvia S. Mader},
    first_publish_year: {1980}
}

@Author{OL387584A,
    name: {Sylvia S. Mader},
}