... Szeidl, "Variable Stars in the Globular Clusters and Related Systems", IAU Coll N21 ... H.P.Jones, Variable Stars in the Globular Clusters and Related Systems, IAU Coll N21 ...
... Szeidl, "Variable Stars in the Globular Clusters and Related Systems", IAU Coll N21 ... H.P.Jones, Variable Stars in the Globular Clusters and Related Systems, IAU Coll N21 ...
... Szeidl, "Variable Stars in the Globular Clusters and Related Systems", IAU Coll N21 ... H.P.Jones, Variable Stars in the Globular Clusters and Related Systems, IAU Coll N21 ...