  Paper I: "RR Lyrae Variables in Globular Clusters and the Second-Parameter
Phenomenon"
  Authors: M. Catelan, A. V. Sweigart, J. Borissova Abstract: We propose to use
RR Lyrae variables in globular clusters to probe the origin of the
second-parameter phenomenon.
  Paper II: "New Possible Variables in the Outer-Halo Globular Cluster Palomar
3"
  Authors: J. Borissova, N. Spassova, M. Catelan, V. D. Ivanov Abstract: We
present a list of ten possible variable stars in the globular cluster Pal 3.
Seven are new suspected variables. The variability of the RR Lyr candidate
reported by Burbidge & Sandage (1958), as well as of the Pop. II Cepheid and RR
Lyr from Gratton & Ortolani (1984), are confirmed.
  Paper III: "On the Production of Bright RR Lyrae Variables in Metal-Rich
Globular Clusters"
  Authors: A. V. Sweigart, M. Catelan Abstract: See astro-ph/9708174.
