Found the following CITATION files in a non-standard place:
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/HTSCluster/inst/CITATION
  HTSCluster/inst/CITATION
Most likely 'inst/CITATION' should be used instead.