Robuta

https://ub-cgi.aau.at/popper/prodsys/

https://www.indigo.ca/en-ca/the-poverty-of-historicism/9780415278461.html

https://www.indigo.ca/en-ca/the-logic-of-scientific-discovery/9780415278447.html

https://www.indigo.ca/en-ca/the-self-and-its-brain-an-argument-for-interactionism/9781138131491.html

https://www.indigo.ca/en-ca/the-lesson-of-this-century-with-two-talks-on-freedom-and-the-democratic-state/9781138177826.html