antlerboy - Benjamin P Taylor 12:41 pm on October 10, 2021  

The great Ashby: Complexity, variety, and information – Casti – 1996 – Complexity – Wiley Online Library

(pdf) https://onlinelibrary.wiley.com/doi/pdf/10.1002/%28SICI%291099-0526%28199609/10%292%3A1%3C7%3A%3AAID-CPLX3%3E3.0.CO%3B2-C