Whitepaper
“There are (at least) six types of heat-sealers. What kind should you get?” ... Gene Rebeck, Industrial Fabric Products Review, February 1997. 

Whitepaper
“Alternate seaming methods for nonwoven geotextiles ... Revisions to ASTM D 4884 have expanded the methodologies available to engineers and installers by adding thermally bonded seaming methods.” ... Glenn W. Lippman and Ronald K. Frobel, P.E., Geotechnical Fabrics Report, October/November 1996.

Whitepaper
“Heat Sealing and Heat Sealing Options.” ... Glenn W. Lippman, SP Brokerage MediaGram, October 2003.

Whitepaper
“Geotextile Installation Specification for Hand-Held Wedge Welding” ... Glenn W. Lippman, Novaseal Publications, 1998.