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References
Andrzej Grabowski
The validity of moral rules and principles as a legal problem![Open Access Link](images/OAlink.png)
2015
in: Problems of normativity, rules and rule-following, Dordrecht : Springer
![Open Access Link](images/OAlink.png)
2015
in: Problems of normativity, rules and rule-following, Dordrecht : Springer