@Book{OL3692772M,
    title: {The penultimate truth},
    author: {Philip K. Dick},
    publisher: {Vintage Books},
    year: {2004},
    place: {New York},
}

@Book{OL4421905M,
    title: {Down in the black gang},
    author: {Philip José Farmer},
    publisher: {Nelson Doubleday},
    year: {1971},
    place: {Garden City, N.Y},
}

@Book{OL2198671M,
    title: {The world at the end of time},
    author: {Frederik Pohl},
    publisher: {Ballantine Books},
    year: {1990},
    place: {New York},
}

@Book{OL17227472M,
    title: {The unreasoning mask},
    author: {Philip José Farmer},
    publisher: {Overlook Press},
    year: {2007},
    place: {Woodstock, New York},
}

@Work{OL510449W,
    title: {Tales of Known Space},
    author: {Larry Niven},
    first_publish_year: {1975}
}

@Work{OL1840407W,
    title: {The unreasoning mask},
    author: {Philip José Farmer},
    first_publish_year: {1981}
}

@Work{OL10587211W,
    title: {The world at the end of time},
    author: {Frederik Pohl},
    first_publish_year: {1990}
}

@Work{OL17914098W,
    title: {A barnstormer in Oz : or, A rationalization and extrapolation of the split-level continuum},
}