Dear Robert,
First of all, sorry for the late reply I have been a little bit sick during the last days.
Well, after reading many application docs about routing memories I found the next one in Cypresss
and after reading it really carefully I realized that perhaps it was not so important if you do the things with a little bit care and love.
The memory I am using has not as strict spec as you showed. Well I did not find something like this. That is the reason why I say that care and love are the best key ingredient for a nice pcb.(in my case)
Many thanks to all,
dramos