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References
J. W. Degen
Logical problems suggested by logicism![Open Access Link](images/OAlink.png)
2006
in: Cambridge and Vienna, Dordrecht : Springer
![Open Access Link](images/OAlink.png)
Das onto-logische Sechseck![Open Access Link](images/OAlink.png)
1988
Grazer Philosophische Studien 32
![Open Access Link](images/OAlink.png)
2006
in: Cambridge and Vienna, Dordrecht : Springer
1988
Grazer Philosophische Studien 32