@Book{OL797274M,
    title: {The designer's guide to VHDL},
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    publisher: {Morgan Kaufmann Publishers},
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@Book{OL967668M,
    title: {Computer networks},
    author: {Andrew S. Tanenbaum and John David Wetherall and David J. Wetherall and Nickolas Feamster and David Wetherall and James F. Kurose and Keith W. Ross},
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    year: {1996},
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}

@Book{OL17290493M,
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    author: {Andrew S. Tanenbaum and Albert S. Woodhull},
    publisher: {Prentice-Hall International},
    year: {1987},
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}

@Book{OL46871682M,
    title: {O Último Teorema de Fermat},
}

@Book{OL9725720M,
    title: {Linux the Complete Reference},
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@Book{OL24630127M,
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    year: {2000},
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@Book{OL9158856M,
    title: {C},
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    year: {1989},
}