[Clas_cascades] temporary reference

[Hovanes Egiyan]

Hi,

Here is the temporary reference to the Phi-- paper
in the arXiv until it gets published in PRC.

Hovanes

@Article{Egiyan:2011cv,
      author    = "Egiyan, H. and others",
      title     = "{Upper limits for the photoproduction cross section for the
                   Phi--(1860) pentaquark state off the deuteron}",
      year      = "2011",
      eprint    = "1109.1238",
      archivePrefix = "arXiv",
      primaryClass  =  "nucl-ex",
      SLACcitation  = "%%CITATION = 1109.1238;%%"
}