For more information please have a look at the official SPR-KKR website

Interested users have to apply for the code by filling out a license agreement and sending it to Prof. Hubert Ebert, the author of the code. A short description of planned calculations has to be supplied in addition. The application will be rejected if either is missing or the calculations are not suitable for the SPR-KKR code.

The source code of SPR-KKR will be sent to the user via email.