【序号】：1
【作者】：N Stribeck, U No?chel, SS Funari
【题名】：Melting and crystallization of differently oriented sets of crystallites in hard-elastic polypropylene
【期刊】：Macromolecules
【年、卷、期、起止页码】：2009, 42 (6), pp 2093–2101
【全文链接】：http://pubs.acs.org/doi/abs/10.1021/ma8025282

【序号】：2
【作者】：I. K. Park and H. D. Noether
【题名】：Crystalline “Hard” Elastic Materials II. Mechanical properties
【期刊】：Colloid & Polymer Science
【年、卷、期、起止页码】：Volume 253, Number 10 (1975), 824-839, DOI: 10.1007/BF01452402
【全文链接】：http://www.springerlink.com/content/r2514u8391551150/

【序号】：3
【作者】：S. Hild1,*, W. Gutmannsbauer2, R. Lüthi2, J. Fuhrmann3, H.-J. Güntherodt3
【题名】：A nanoscopic view of structure and deformation of hard elastic polypropylene with scanning force microscopy
【期刊】：Journal of Polymer Science Part B: Polymer Physics
【年、卷、期、起止页码】：Volume 34, Issue 12, pages 1953–1959, 15 September 1996
【全文链接】：http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1099-0488(19960915)34:12%3C1953::AID-POLB1%3E3.0.CO;2-R/abstract

【序号】：4
【作者】：H. D. Noether and W. Whitney
【题名】：X-ray diffraction and morphology of crystalline, hard, elastic materials
【期刊】：Colloid & Polymer Science
【年、卷、期、起止页码】：Volume 251, Number 11 (1973), 991-1005, DOI: 10.1007/BF01498928
【全文链接】：http://www.springerlink.com/content/vq5939hk2gt91r02/

【序号】：5
【作者】：Y Shimizu, H Akabane, A Tanioka
【题名】：Effects of extension on the gas permeability of hard elastic polypropylene film
【期刊】：Journal of Polymer Science: Polymer Physics Edition
【年、卷、期、起止页码】：Volume 17, Issue 9, pages 1495–1506, September 1979
【全文链接】：http://onlinelibrary.wiley.com/doi/10.1002/pol.1979.180170903/abstract