https://eurekaddl.art/book/antonio-manzini-ogni-riferimento-e-puramente-casuale-2019/
https://is.annas-archive.org/md5/6781b3576b5bd4891cbbbf83dc7044b3
https://is.annas-archive.org/md5/09fedc66de5ee136dbbfc8b2ef0955ed