“Temperature dependence of and , collective proton frequency width, collective phonon mode frequency, in paraelectric phase for KH2PO4”, GJSFR, vol. 10, no. 3, p. -, Jan. 2010, Accessed: Aug. 13, 2026. [Online]. Available: https://www.journalofscience.org/index.php/GJSFR/article/view/100009