Summary

I could not find reliable contemporary records confirming that a coach named Antonio (António/Antônio) Lopes was in charge of Cerro Porteño around the 1995/96 seasons. There are multiple football managers with similar names (Portuguese and Brazilian spellings), which makes searches ambiguous in some databases. Below are practical steps, specific resources, and search tips you can use to verify the coaching staff and match line‑ups for Cerro Porteño in 1995 and 1996.

• Check specialized football statistical sites
  • RSSSF (Rec.Sport.Soccer Statistics Foundation) — look for Paraguayan Primera División season pages for 1995 and 1996 and Copa Libertadores participations.
  • WorldFootball.net, Transfermarkt, National-Football-Teams, and Soccerway — search Cerro Porteño team pages and historical manager lists.
  • ZeroZero / OGol (ceroacero.es / ogol.com.br) — good for squad lists and match lineups by season.
• Search Paraguayan news archives
  • ABC Color and Última Hora (digital archives) — match reports and managerial announcements from 1995–1996.
  • La Nación (Paraguay) and archived local sports pages — useful for press releases when a new coach is hired.
• Consult primary/official sources
  • Cerro Porteño official website and club historical pages or museum/archives (club historians often keep lists of managers by year).
  • Paraguayan Football Association (Asociación Paraguaya de Fútbol) match reports and competition records.
  • CONMEBOL archives for Copa Libertadores participation (lineups and technical staff for continental matches).
• Search tips and keywords
  • Use Spanish search terms like "Cerro Porteño entrenador 1995", "Cerro Porteño director técnico 1996", "Cerro Porteño plantel 1995", and variations of the coach name: "Antonio Lopes", "António Lopes", "Antônio Lopes".
  • Include competition names: "Copa Libertadores 1996 Cerro Porteño", "Torneo Apertura 1995 Cerro Porteño", "Torneo Clausura 1996 Cerro Porteño".
  • Search match reports for lineups (they usually list the coach alongside the starting XI and substitutes).
• When primary verification is needed
  • Contact Cerro Porteño's press office or club historian (many clubs respond to direct inquiries about historical records).
  • Visit or contact national library or newspaper archive services in Paraguay for digitized or microfilm copies of sports pages from 1995–1996.

Next steps I can take

I can perform targeted lookups in the online databases and news sources listed above and compile match-by-match lineups or manager-attribution for the 1995 and 1996 seasons if you want a compiled report from those sources. This will help confirm whether an Antonio/António/Antônio Lopes was ever registered as Cerro Porteño coach in that timeframe.