APA (7th ed.) Citation

Freund, A. X-Ray Mirrors, Crystals, and Multilayers. SPIE Digital Library.

Chicago Style (17th ed.) Citation

Freund, Andreas. X-Ray Mirrors, Crystals, and Multilayers. SPIE Digital Library.

MLA (8th ed.) Citation

Freund, Andreas. X-Ray Mirrors, Crystals, and Multilayers. SPIE Digital Library.

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