Hi Alberto:

thank you very much for your pointers to your papers.
Especially your SIAM paper was very helpful.

http://www.ccs.neu.edu/research/demeter/seminar/1998/feb17

trav-theory.ps
add-on.txt

contain a discussion of your work in relation to ours.

-- Karl
===================
In
http://www.ccs.neu.edu/research/demeter/design-decisions/related-work/yannis-fee
dback.ps

is a detailed response by Yannis Smaragdakis to both algorithmic and conceptual
issues
about strategies.