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  1. 1
    Comparative analysis of the contingent of students of the correspondence form of teaching

    Comparative analysis of the contingent of students of the correspondence form of teaching by O V Kalmykova

    Published 2015-12-01
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  2. 2
    The effectiveness of resource-saving techniques for the cultivation of onions during irrigation in the conditions of the Lower Volga

    The effectiveness of resource-saving techniques for the cultivation of onions during irrigation in the conditions of the Lower Volga by E. V. Kalmykova, A. A. Novikov, N. Yu. Petrov, O. V. Kalmykova

    Published 2020-03-01
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