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Research partially supported by NSERC Grant # 4822.
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Aubertin, B., Обертэн, Б., Fournier, J.J.F. et al. An integrability theorem for unbounded Vilenkin systems. Anal Math 23, 159–187 (1997). https://doi.org/10.1007/BF02789836
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DOI: https://doi.org/10.1007/BF02789836