Daniel Kennefick’s interesting article states, “With Nathan Rosen, his first American assistant, Einstein published two more papers in the Physical Review: the famous 1935 paper by Einstein, Boris Podolsky, and Rosen (EPR) and a 1936 paper that introduced the concept of the Einstein–Rosen bridge, nowadays better known as a wormhole.” To my knowledge, that information is not complete. Einstein and Rosen published another, earlier paper, “The Particle Problem in the General Theory of Relativity.” 1  

1.
A.
Einstein
,
N.
Rosen
,
Phys. Rev.
58
,
73
(
1935
) .