Richmond, R. D. Direct Detection LADAR Systems. SPIE Digital Library.
Chicago-čujuhus (17. p.)Richmond, Richard D. Direct Detection LADAR Systems. SPIE Digital Library.
MLA-čujuhus (9. p.)Richmond, Richard D. Direct Detection LADAR Systems. SPIE Digital Library.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.