APA (7th ed.) Citation

Keller, U. Vertical External Cavity Surface Emitting Lasers (VECSELs) IX. SPIE Digital Library.

Chicago Style (17th ed.) Citation

Keller, Ursula. Vertical External Cavity Surface Emitting Lasers (VECSELs) IX. SPIE Digital Library.

MLA (9th ed.) Citation

Keller, Ursula. Vertical External Cavity Surface Emitting Lasers (VECSELs) IX. SPIE Digital Library.

Warning: These citations may not always be 100% accurate.