@Book{OL43166826M,
    title: {Understanding Chemistry},
    author: {Lawrence P. Lessing},
}

@Book{OL44237188M,
    title: {Understanding Chemistry},
    author: {Lawrence P. Lessing},
    publisher: {Penguin Publishing Group},
    year: {1960},
}

@Book{OL45893213M,
    title: {Understanding chemistry},
    author: {Lawrence P. Lessing},
    publisher: {Interscience Publishers},
    year: {1959},
}

@Book{OL9530160M,
    title: {An Introduction to Beam Physics},
    author: {Martin Berz and Kyoko Makino and Weishi Wan},
    publisher: {Taylor \& Francis},
    year: {2009},
}

@Book{OL26338999M,
    title: {Understanding physics},
    author: {Isaac Asimov},
    publisher: {Barnes \& Noble Books},
    year: {1993},
    place: {New York, USA},
}

@Book{OL2057545M,
    title: {Introduction to electrodynamics},
    author: {David Jeffrey Griffiths},
    publisher: {Prentice Hall},
    year: {1989},
    place: {Englewood Cliffs, N.J},
}

@Book{OL13662077M,
    title: {Electromagnetic theory},
    author: {Julius Adams Stratton},
    publisher: {McGraw-Hill},
    year: {1941},
    place: {New York},
}

@Author{OL4333757A,
    name: {Julius Adams Stratton},
}