Original paper was published online(2017.08.10)
H.Sakuma, I. Ojima and M. Ohtsu,
Dressed photons in a new paradigm of off-shell quantum fields, Progress in Quantum Electronics、55 (2017) 74-87.
The paper can be downloaded from the URL below.
Abstract:
https://www.sciencedirect.com/science/article/pii/S0079672717300447