https://firebirdsql.org/en/start/
https://www.ibase.ru/develop/

https://www.youtube.com/SQLFirebird

https://firebirdsql.org/en/documentation/
https://firebirdsql.org/en/downloads/
https://firebirdsql.org/en/development/

https://firebirdsql.org/en/firebird-5-0/
https://firebirdsql.org/file/documentation/release_notes/Firebird-5.0.0-ReleaseNotes.pdf

2024
https://habr.com/ru/articles/785590/