http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=971777 The above article predates the patent US5576880. I sent this article to the inventor of US5576880 prior to his filing of this patent. He submitted this patent application on the paper and failed to notify the patent office of this prior art.
Inequitable conduct is primarily a defense to an infringment accusation.
One option you have is to submit that paper under 35 USC 301.
You would not be able to say that you know the person had access to the paper in advance or allege inequitable conduct. But the paper would be sitting in the file as something that might be looked at for its pure prior art value in the case of reexamination, reissue or litigation.
Or under 35 USC 302 you can file requesting ex parte reexamination based on that document's pure prior art value. The least that would cost is $6000 in USPTO fees assuming the requestor qualifies as a small entity.
Or you could file an inter party review or a post-grant review under the new AIA procedures. I do not believe that either inequitable conduct or untruthful declaration of inventorship can be raised in either of these, more expensive procedures.
Of course, your tagged posting here at Ask Patents might be seen by a future infringement defendant.