@Book{OL562800M,
    title: {Cassell dictionary of superstitions},
    author: {Pickering, David and David Pickering},
    publisher: {Cassell},
    year: {1995},
    place: {London},
}

@Book{OL20941431M,
    title: {A treasury of American superstitions},
    author: {Claudia de Lys},
    publisher: {Philosophical Library},
    year: {1948},
    place: {New York},
}

@Work{OL5365120W,
    title: {Knock on wood \& other superstitions},
    author: {Carole Potter},
    first_publish_year: {1984}
}

@Work{OL2426681W,
    title: {Cassell dictionary of superstitions},
    author: {Pickering, David and David Pickering},
    first_publish_year: {1995}
}

@Author{OL334578A,
    name: {Pickering, David},
    birth_date: {1958}
}
@Author{OL2624258A,
    name: {David Pickering},
}