Try anything citing von Förster's paper that was written by:
• Louis H. Kauffman if you're mostly interested in the pure math aspect of it. He wrote numerous papers on the topic of von Förster's paper, you can find one them here: https://arxiv.org/abs/1109.1892
• JM Stern and CAB Pereira if you're mostly interested in the application to statistics and fundamental questions of the epistemology of statistics. I wrote a thread on their works on my Twitter account at some point: https://twitter.com/no_identd/status/877883663014400000
Also, this paper by Heinz von Förster (first order author) and Karl H. Miiller (second order editor), where Miller basically took a lot of old papers by von Förster and rearranged them to give a more coherent view for certain types of readers:
• Louis H. Kauffman if you're mostly interested in the pure math aspect of it. He wrote numerous papers on the topic of von Förster's paper, you can find one them here: https://arxiv.org/abs/1109.1892
• JM Stern and CAB Pereira if you're mostly interested in the application to statistics and fundamental questions of the epistemology of statistics. I wrote a thread on their works on my Twitter account at some point: https://twitter.com/no_identd/status/877883663014400000
Try this AMAZING paper by AF Zimpel: http://www.emeraldinsight.com/doi/pdf/10.1108/03684920510581...
Also, this paper by Heinz von Förster (first order author) and Karl H. Miiller (second order editor), where Miller basically took a lot of old papers by von Förster and rearranged them to give a more coherent view for certain types of readers:
http://www.univie.ac.at/constructivism/archive/fulltexts/309...