ButtS.I., Pečarić Ð. and PečarićJ. 2023. Several Jensen–Grüss inequalities with applications in information theory. Ukrains’kyi Matematychnyi Zhurnal. 74, 12 (Jan. 2023), 1654 - 1672. DOI:https://doi.org/10.37863/umzh.v74i12.6554.