1. Einige Bemerkungen über die Auffindung der rationalen Punkte auf gewissen algebraischen Gebilden;Skolem;Math. Z.,1955
2. On the rational solutions of homogeneous cubic equations in four variables;Segre;Math. Notae (Rosario Argentina),1951
3. On Ryley's solution of x3 +y3 +z3 = n;Mordell;J. Lond. Math. Soc.,1942
4. On rational solutions of x3 +y3 +z3 = R.;Richmond;Proc. Edinburgh Math. Soc., (2),1930
5. A parametric solution of the indeterminate cubic equation z2 = f(x, y);Segre;J. Lond. Math. Soc.,1943