von Uexküll

Jakob Johann von Uexküll – Wikipedia

https://en.wikipedia.org/wiki/Jakob_Johann_von_Uexk%C3%BCll

Umwelt

https://en.wikipedia.org/wiki/Umwelt

• Tim Elmo Feiten

“Jakob von Uexküll’s Concept of Umwelt” by Tim Elmo Feiten (Keywords: Biology; Metaphysics; Animals)

https://www.thephilosopher1923.org/post/jakob-von-uexkull-umwelt