Index: README.md ================================================================== --- README.md +++ README.md @@ -45,5 +45,9 @@ E-mail: vvzhy@td.lpi.ac.ru E-mail: grg@curie.phy.ncu.edu.tw Subject: for Zhytnikov ``` + +## Upstream + +- [GRG Homepage](https://reduce-algebra.sourceforge.io/grg32/grg32.php)