1. 2) “Encyclopedia of Polymer Science and Technology: Plastics, Resins, Rubbers, Fibers”, H. F. Mark, N. G. Gaylord, and N. M. Bikales eds., Vol. 6: Enzymes to Finishing, Interscience, New York (1967), pp. 209–271.
2. 3) “Concise Encyclopedia of Polymer Science and Engineering”, J. I. Kroschwitz ed., John Wiley and Sons, New York (1990), pp. 344–349.
3. 4) J. Scheirs, “Polymer Recycling”, Chapter 11, John Wiley and Sons, New York (1998), pp. 379–410.