半血兄弟姉妹の相続分を全血兄弟姉妹の2分の1とする民法900条4号但書規定についての一試論 <論説>

This article discusses the legitimacy and constitutionality on inheritance rights of half siblings from some aspects of law studies. The contents are as follows: 1. Introduction; 2. General discussion in the past; 3. Purpose of distinction between a full sibling and a half sibling; 4. Constitutionality; and 5. Conclusion.