In the 1970s he hosted the Zacaulpan symposium at his home in that town , which was instrumental in the formation of the Grupos .
Vargas has been active in promoting new artistic trends .
In the 1970s Vargas hosted the Zacaulpan symposium at Vargas ' home in that town , which was instrumental in the formation of the Grupos .
Vargas has been active in promoting new artistic trends .