Chen, Qianxu, and Xin Yang. “A Study of Damage Mode Recognition of Polypropylene Fiber-Reinforced Recycled Aggregate Concrete Based on Principal Components of Acoustic Emission Signals”. Archives of Acoustics, vol. 51, no. 2, June 2026, pp. 283-92, https://doi.org/10.24423/archacoust.2026.4407.