Does anyone have the 47th edition of Schön Weltmünzkatalog 20? [gelöst]

The reference list includes:

Schön: Gerhard Schön; 2020. Weltmünzkatalog / 20. Jahrhundert: 1901-2000 (47. Auflage). Gietl Verlag, Regenstauf, Germany.

I have the 46th but I can't find the 47th. There is a listing on amazon.de but the book isn't for sale. The page says "Derzeit nicht verfügbar" (Currently not available) and it has said that for months.

https://www.amazon.de/Weltm%C3%BCnzkatalog-20-Jahrhundert-Gerhard-Sch%C3%B6n/dp/3866461844/

https://www.beck-shop.de/schoen-weltmuenzkatalog-20-jahrhundert/product/29343945
But it won't come out until July.

Verweis : "Idolenz"​https://www.beck-shop.de/schoen-weltmuenzkatalog-20-jahrhundert/product/29343945
​But it won't come out until July.

​The date has been pushed back to October.

So the reference list still gives a source that isn't available.