Apparently, the zettelkasten concept was derived before Luhmann. https://boffosocko.com/2022/09/09/zettelkasten-method-state-of-the-art-in-1898/

Apparently, the zettelkasten concept was derived before Luhmann. https://boffosocko.com/2022/09/09/zettelkasten-method-state-of-the-art-in-1898/ joebuhlig.com

2022-09-10 1:24 pm