Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

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