Fischer, S. Broadband European Networks and Multimedia Services. SPIE Digital Library.
Chicago-čujuhus (17. p.)Fischer, Stephan. Broadband European Networks and Multimedia Services. SPIE Digital Library.
MLA-čujuhus (9. p.)Fischer, Stephan. Broadband European Networks and Multimedia Services. SPIE Digital Library.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.