1. On the solution of the “easier” Waring problem;Banerjee;Bull. Calcutta Math. Soc.,1942
2. A note on equal sums of like powers;Barrodale;Math. Comput.,1966
3. L. E. Dickson, “History of Number Theory,” Vol. 2.
4. The “easier” Waring problem;Fuchs;Quart. J. Math. Oxford,1939
5. A note on sums of powers;Gupta;Math. Student,1951