Efficient ablation of organic polymers polyether sulphone and polyether ether ketone by a TEA CO2 laser with high perforation ability - Sumiyoshi, T.; Ninomiya, Y.; Ogasawara, H.; Obara, M.; Tanaka, H. (Springer, 1994)
http://dx.doi.org/10.1007/BF00332440
Keywords: ZL; U