@Book{OL3670355M,
    title: {Silent spring},
    author: {Rachel Carson},
    publisher: {Houghton Mifflin},
    year: {2002},
    place: {Boston},
}

@Author{OL225621A,
    name: {Rachel Carson},
    birth_date: {1907-05-27}
    , death_date: {1964}
}