1. On the representations of a number as the sum of three squares;Bateman;Trans. Amer. Math. Soc.,1951
2. On the representation of a larger even integer as the sum of a prime and the product of at most two primes;Chen;Sci. Sinica,1973
3. Lagrange's theorem with N1/3 squares;Choi;Proc. Amer. Math. Soc.,1980
4. Additive properties of random sequences of positive integers;Erdös;Acta Arith.,1960
5. “Sieve Methods”;Halberstam,1974