[5] Schroeter J.: 1998. Creating the framework for widespread use of biodegradable polymers (standardization, labelling, legislation, biowaste management). IBAW.
[6] EN 13432:2000 Packaging (Requirements for packaging recoverable through composting and biodegradation ( Test scheme and evaluation criteria for the final acceptance of packaging (PN-EN 13432:2002 Opakowania - Wymagania dotyczące opakowań przydatnych do odzysku przez kompostowanie i biodegradację. Program badań i kryteria oceny do ostatecznej akceptacji opakowań).
[7] 2001/524/EC: Commission Decision of 28 June 2001 relating to the publication of references for standards EN 13428:2000, EN 13429:2000, EN 13430:2000, EN 13431:2000 and EN 13432:2000 in the Official Journal of the European Communities in connection with Directive 94/62/EC on packaging and packaging waste.
[8] Jacques G.: 2003. Examining the challenger of environmental product certification in global market: combining credibility, visibility and efficiency. Biodegradable Plastics Conference. Frankfurt, 3-4 December.
[9] Reske J.: 2003. Clarifying the recent changes to the European compostable labelling system, Biodegradable Plastics Conference. Frankfurt, 3-4 December.