https://auctioncatalogs.com/product/2004-christies-south-kensington-christopher-howe-the-first-twenty-years-32404-12266/
2004 Christie's South Kensington Christopher Howe The First Twenty Years 3/24/04 | Auction Catalogs...
first twenty yearssouth kensingtonchristiechristopherhowe
https://countercomplex.blogspot.com/2015/04/my-first-twenty-years-on-demoscene.html?showComment=1634815674512
countercomplex: My first twenty years on the demoscene
Since I have been somewhat inactive in computer art for a while, I felt it might be a good idea to sum up the first twenty years of my demos...
first twenty yearson thedemoscene
https://countercomplex.blogspot.com/2015/04/my-first-twenty-years-on-demoscene.html?showComment=1635238528520
countercomplex: My first twenty years on the demoscene
Since I have been somewhat inactive in computer art for a while, I felt it might be a good idea to sum up the first twenty years of my demos...
first twenty yearson thedemoscene
https://blog.addgene.org/addgene-the-first-twenty-years
Addgene: The First Twenty Years
Twenty years have gone by fast! Join us to share some highlights of Addgene and our community as we close out our 20th anniversary celebration.
first twenty yearsaddgene