The Handbook of Systems Sciences is now published. This a work that began in March of 2017, at a small meeting in Tokyo, where Kyoichi (Jim) Kijima presented the idea and set the process in motion. At over 1466 pages, covering 48 chapters by different authors, it has been a significant undertaking.
Below are links for the book. Individual copies are expensive, so it can most easily be accessed through major libraries which have subscriptions to the Springer Nature reference series.
Book promotion site (USD): https://lnkd.in/g_rk5Tu
The book itself: https://lnkd.in/g8wcygx
Pre-order on Amazon.com: https://lnkd.in/gBAe5Mc