abntex software package provides LaTeX class for writing documents in ABNT standard, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install abntex
abntex is installed in your system.
Make ensure the abntex package were installed using the commands given below,
$ sudo dpkg-query -l | grep abntex *
You will get with abntex package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | TeX |
| Package | abntex |
| Version | 0.9~beta2-5.1 |
| Description | LaTeX class for writing documents in ABNT standard |
| Sub Section | TeX |