Re: [PrimeNumbers] Chen Primes
>Chen, J. R. "On the Representation of a Large Even Integer as the Sumof a Prime and the Product of at Most Two Primes."
> Scientia Sinica 16, 157-176, 1973.is available as pp.253-272 of this book:-
ed. Wang Yuan "Goldbach Conjecture" (World Scientific, 1984)