APA-referens (7:e uppl.)

Butler, A., Spence, D., & Hooker, S. (2002). Guiding of high-intensity laser pulses with a hydrogen-filled capillary discharge waveguide.

Chicago-referens (17:e uppl.)

Butler, A., D. Spence, och S. Hooker. Guiding of High-intensity Laser Pulses with a Hydrogen-filled Capillary Discharge Waveguide. 2002.

MLA-referens (9:e uppl.)

Butler, A., et al. Guiding of High-intensity Laser Pulses with a Hydrogen-filled Capillary Discharge Waveguide. 2002.