Orovčanec, M. (2001) “UNITARY EQUIVALENCE AND SIMILARITY OF ORDINARY SHIFTS ON OPERATOR VALUED WEIGHTED SEQUENCE SPACES”, Matematichki Bilten, 25(1), pp. 49–52. Available at: https://bilten.smm.org.mk/index.php/bilten/article/view/1665 (Accessed: 14 August 2026).