Straka, S. Optical System Contamination: Effects, Measurements, and Control 2012. SPIE Digital Library.
Citazione stile Chigago Style (17a edizione)Straka, Sharon. Optical System Contamination: Effects, Measurements, and Control 2012. SPIE Digital Library.
Citatione MLA (8a ed.)Straka, Sharon. Optical System Contamination: Effects, Measurements, and Control 2012. SPIE Digital Library.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.