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The authors express their grateful acknowledgement to Prof. Dipl. Ing. M. Rákoš, DrSc. for reading the manuscript and for valuable discussions, to Dipl. Ing. R. Šimo, CSc. for the poly-propylene samples and their specifications, to Mrs. E. Havlíková and Mr. J. Varga for their help in the NMR experiments and data treatment.
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Murín, J., Olčák, D. Influence of drawing on molecular mobility in polypropylene fibres studied by nuclear magnetic resonance. Czech J Phys 34, 247–257 (1984). https://doi.org/10.1007/BF02340338
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DOI: https://doi.org/10.1007/BF02340338