ARRStaniĊĦev, Ivana2023-12-252023-12-2520201607-3606doi.org/10.2989/16073606.2020.1851310https://www.tandfonline.com/doi/abs/10.2989/16073606.2020.1851310https://repozitorijum.tfbor.bg.ac.rs/handle/123456789/494enStar partial order in indefinite inner product spacesarticle