The timing and the quality of the signal is a serious problem in the
computer industry.
I remember one book by the title of "computer circuits electrical design"
which is suprisingly about signal integrity (although the title does
not carry the words signal integrity). For some reasons I did not record
the author of the book, but the call number is TK 7888.4 P65 1995 is
at University of Toronto.
Good luck
Fethi Bellamine