Robuta

https://www.macba.cat/ca/obra/ajbr03494070-carta--sant-andreu-del-palomar-barcelona-a-pepa-llopis-barcelona-1999-febr-21/

https://stedelijk.nl/en/collection/25682-pierre-alechinsky-alechinsky-galerie-espace-amsterdam-1-febr.-3-mrt-1974

https://www.macba.cat/en/obra/ajbr02804-carta--barcelona-a-joan-brossa-barcelona-1980-febr-7/

https://www.macba.cat/nl/obra/ajbr03442002-carta--jerusalem-israel-a-pepa-ie-pepa-llopis-barcelona-1999-febr-1/