Aldo A. R. Valcarce (avalcarceb "at" academicos.uta.cl) web

Márcio Catelan (mcatelan "at" astro.puc.cl) web

To Allen Sweigart, a great mentor, colleague and friend. Obituary
- "Best wishes!"

The PGPUC and PGPUC Online projects are supported by the Ministry for the Economy, Development, and Tourism's Millennium Science Initiative through grant ICN12_12009, awarded to the Millennium Institute of Astrophysics (MAS), and by Proyecto Basal CATA2 FB210003.