J. Luis Rivera N.
The contributor J. Luis Rivera N. appears to be present as the CTAN community member jlrn77.
Almost European Concrete Roman virtual fonts
Simplified Spanish support for Babel
Using Beccari's fonts in betacode for classical Greek
Display numbers in maths mode according to ISO 31-0
A LaTeX cheat sheet, in Spanish
Essential information for writing LaTeX documents
Short introduction to LaTeX, Spanish translation
A LaTeX package to typeset indices with GNU's Texindex
Typeset Spanish as in Mexico
Format chapters with a texi-like format