1 Αναφορές

[1] xDSL Technology, www.tuketu.com/dsl/xdsl.htm

[2] Digital Subscriber Line, www.cisco.com

[3] HowStuffWorks “How VDSL Works”, www.howstuffworks.com/vdsl.htm

[4] HowStuffWorks “How DSL Works”, www.howstuffworks.com/dsl.htm