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21Published 1993Conference Proceeding Book
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22Published 1989Conference Proceeding Book
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23Published 1989Conference Proceeding Book
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24EUROCAL '87 : European Conference on Computer Algebra : Leipzig, GDR, June 2-5, 1987 : proceedings /Published 1989Conference Proceeding Book
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25Published 1989Conference Proceeding Book
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26Published 1990Conference Proceeding Book
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27Published 1990Conference Proceeding Book
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28Published 1991Conference Proceeding Book
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29
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30Published 1994Conference Proceeding Book
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31Published 1996Conference Proceeding Book
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32Published 1996Conference Proceeding Book
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33Published 1996Conference Proceeding Book
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34Published 1995Conference Proceeding Book
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35
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36
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37
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38
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39
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40