- My trusted editor: https://www.katharinaglueck.de/
- My trusted graphic designer: https://www.libermoor.com/
- Literary agency: https://keil-keil.com/de/
- Recommended Gin for reading „Das Stoffuniversum”: https://www.thescientistgin.at/
- Publisher (“Das Stoffuniversum“): https://www.pmachinery.de/