1. Primer on nonwoven fabric filtration;Gregor,2009
2. The future of global nonwovens markets to 2018,2013
3. The future of nonwovens for filtration to 2019,2014
4. Air, Gas, water, fluid treatment and control report,2011
5. ISO 9092:1988; BS EN 29092:1992 Textiles. Nonwovens. Definition.