Tx cyril
The link is missing. But I think it wight be this one: http://sdmeta.gforge.inria.fr/Teaching/Lectures-Cameron-Archi/ObjV.pillar.pdf
I have a new one https://ci.inria.fr/pharo-contribution/view/Books/job/BuildingLanguageKernels/lastSuccessfulBuild/artifact/build/book.pdf I should revisit it but I have to find time for it.
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