Tables containing light curves of all variables discussed in this paper as well as tables with VI photometry presented in Figs. 8 (click here) and 9 (click here) are published by A&A at the centre de Données de Strasbourg, where they are available in electronic form via ftp 130.79.128.5 or http://cdsweb.u-strasbg.fr/abstract.html. Equatorial coordinates are given for all stars included in these tables. We have also submitted the V-filter "template" images of fields 5139D-F. These images can be used for identification of all variables discussed in this paper as well as for identification of all stars for which we provide VI photometry.