Guru Geri 
Farmer, Scientist, Artist and Activist
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Books and scientific papers

I have written several books for science, teaching and pleasure. If you like to have one of them, you can find them via Amazon or you send me a request. My more than 300 scientific papers (peer reviewed and grey) are found on the webpage of the Thuenen-Institute and search "Rahmann". You can also search under google scholar with my name "Gerold Rahmann".