Triantou, K., Mergia, K., Stamatelatos, I. E., Apostolopoulos, G., & Messoloras, S. (2019). Determining the positron lifetime of a material using Positron Annihilation Lifetime Spectroscopy. HNPS Advances in Nuclear Physics, 25, 245–248. https://doi.org/10.12681/hnps.1988