Đỗ, V.M., Bui Xuan, X.S., Nguyễn, V.H., Lê, X.C. and Phạm, T. Én 2023. Determining the projectile’s mass to ensure the ballistic characteristics of 9 × 19 mm frangible bullets. Journal of Military Science and Technology. 92, 92 (Dec. 2023), 144–150. DOI:https://doi.org/10.54939/1859-1043.j.mst.92.2023.144-150.