lettrismo: alcuni link

http://www.mauricelemaitre.org/what-is-lettrism/
http://www.ricaldone.org/letcrono.html
https://masmoulin.blog/2020/06/19/le-lettrisme-2-4-arts-visuels-n-275/
https://masmoulin.blog/2020/06/19/le-lettrisme-2-4-arts-visuels-n-275/
http://www.artwiki.fr/wakka.php?wiki=LettrismE
https://fr.wikipedia.org/wiki/Isidore_Isou#Hypergraphie
https://www.facebook.com/362762160736360/posts/841607342851837/
https://lesenfantsdelacreatique.blogspot.com/2019/03/retour-sur-le-lettrisme-la-villa.html
http://lesenfantsdelacreatique.blogspot.com/2017/08/les-lettristes-sont-irrecuperables.html
http://www.garagecosmos.be/exhibition.php?id=39&lang=fr
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http://lesenfantsdelacreatique.blogspot.com/2018/02/lettrisme-et-calligraphie.html
http://www.arcadja.com/auctions/en/hachette_micheline/artist/435786/
https://raphael-levy.com/en/werk/isidore-isou/lettrisme-et-hypergraphie/
http://www.lecointredrouet.com/liste.php?PersNum=1523
https://www.facebook.com/362762160736360/photos/a.367329546946288/1234715580207676/
http://1995-2015.undo.net/it/mostra/76741
https://youtu.be/E7izYzn2-gs
https://youtu.be/H-Yp9MZXGV4
http://www.artandpopularculture.com/Jean-Louis_Brau
https://www.artpress.com/2019/05/16/isidore-isou/
https://www.macba.cat/en/art-artists/artists/isou-isidore/hypergraphie-polylogue
http://lesenfantsdelacreatique.blogspot.com/2006/03/commentaires-doeuvres.html
http://lesenfantsdelacreatique.blogspot.com/
http://lesenfantsdelacreatique.blogspot.com/2006/01/actualtes-publications-manifestations.html
http://lesenfantsdelacreatique.blogspot.com/2006/02/citations-reserve-universelle-rcu.html
https://www.abebooks.it/DOUZE-HYPERGRAPHIES-Isou-Isidore-International-Center/1353832040/bd
https://www.artpress.com/2019/05/16/isidore-isou/
Arengario:
http://www.arengario.it/wp-content/uploads/2015/06/pdf-collezione-isou.pdf
Cronologia:
http://www.ocra.it/letcrono.html