(TeX-add-style-hook "msd-hr"
 (function
  (lambda ()
    (LaTeX-add-labels
     "msd-hr"
     "msd-hr:N"
     "msd-hr:V"
     "msd-hr:A"
     "msd-hr:P"
     "msd-hr:D"
     "msd-hr:T"
     "msd-hr:R"
     "msd-hr:S"
     "msd-hr:C"
     "msd-hr:M"
     "msd-hr:I"
     "msd-hr:X"
     "msd-hr:Y"
     "msd-hr:Q"))))