- ... Distance
- This work has been partially supported by the MCyT TIN2006-15265-C06-04 project, as well as by the BUAP-701 PROMEP/103.5/05/1536 grant
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
- ... MEDLINE
- http://www.nlm.nih.gov/
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
- ... (CERN)
- http://library.cern.ch
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.