Completing the Census of (Bright) Variable Stars in Galactic Globular   Clusters
  We present a long-term project aimed at completing the census of (bright) variable stars in Galactic globular clusters. While our main aim is to obtain a reliable assessment of the populations of RR Lyrae and type II Cepheid stars in the Galactic globular cluster system, due attention is also being paid to other types of variables, including SX Phoenicis stars, long-period variables, and eclipsing binaries. 
M. Catelan (1), H. A. Smith (2), B. J. Pritzl (3), J. Borissova (4),   C. Cacciari (5), R. Contreras (1), T. M. Corwin (6), ...