Serbian RR Lira Cited by user Dcirovic on 28 Aug 2020 RR Lira je promenljiva zvezda u sazvežđu Lira, koja se nalazi na njegovom zapadu u blizini Labuda.
English RR Lyrae variable Cited by user Dawnseeker2000 on 30 Jul 2019 RR Lyrae variables are periodic variable stars, commonly found in globular clusters.