theoratical papers on:Interfacing of Digital Circuits with Optical Fibres and Coaxial Cables

[Sukhminder]

Hi Experts,
Can you please help me in finding some theoratical papers on:
Interfacing of Digital Circuits with Optical Fibres and Coaxial
Cables, Grounding of Digital Circuits and Electromagnetic Induction
and Electromagnetic Compatibility of Digital Circuits.
I am actually make an assignment on this.
Thanks in advance.