Yadawa, P. K., et al. “Temperature-Dependent Ultrasonic Properties of Semiconducting M<sub>2< sub>CO<sub>2< Sub> (M= Ti, Zr, Hf) MXenes”. Journal of Scientific Research, vol. 14, no. 3, Sept. 2022, pp. 735-48, doi:10.3329/jsr.v14i3.56976.