@Book{OL973965M,
    title: {The Innovator's Dilemma},
    author: {Clayton M. Christensen and L J Ganser and Don Leslie},
    publisher: {Harvard Business School Press},
    year: {1997},
    place: {Boston, Mass},
}

@Book{OL22094363M,
    title: {Social theory and social structure},
    author: {Robert King Merton},
    place: {New York},
}

@Author{OL145891A,
    name: {Robert King Merton},
    birth_date: {1910}
    , death_date: {2003}
}