“In-Service Fatigue Cracking of the Propeller Shafts Joined by a Spline-Pinned Construction to the Engines of AN-24, AN-26, and IL-18 Aircrafts”. Frattura Ed Integrità Strutturale, vol. 8, no. 30, Sept. 2014, pp. pages 340-348, https://doi.org/10.3221/IGF-ESIS.30.41.