1. Maxwell, A.S.; Broughton, W.R.; Dean, G.; Sims, G.D. Review of accelerated ageing methods and lifetime prediction techniques for polymeric materials. NPL Report DEPC MPR 016, National Physics Lab, Teddington TW11 0LW, UK, 2005; ISSN1744-0270.
2. https://wiki.polymerservice-merseburg.de/index.php/crazing, Polymer Service GmbH Merseburg (PSM), Merseburg, Germany.
3. Michler, G.H. Kunststoff-Mikromechanik: Morphologie, Deformations- und Bruchmechanismen, Carl Hanser Verlag, Muenchen, Wien (1992) (in German).
4. Atlas of Polymer Structures