- ISSN 1756-2864. PMC 10064471. PMID 37006459. ****er S,
Beukelman D,
Karantounis R,
Jakobs T (2006). "Use of safe-laser
access technology to increase...
- Teacher. 48 (8): 676–684. JSTOR 20201533. ****er, S.; Beukelman, D.;
Karantounis, R.; Jakobs, T. (2006). "Use of safe-laser
access technology to increase...