Pernechele, C. Introduction to Panoramic Lenses. SPIE Digital Library.
Chicago-čujuhus (17. p.)Pernechele, Claudio. Introduction to Panoramic Lenses. SPIE Digital Library.
MLA-čujuhus (9. p.)Pernechele, Claudio. Introduction to Panoramic Lenses. SPIE Digital Library.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.