Sukharev, A. A., and A. O. Vlasenko, “Application of the TRL Scale to Planning of Complex Science and Technology Programs in Aviation”, Приоритеты научно-технологического развития, Economics of Science, 6/1-2 (2020), 52-61, https://doi.org/10.22394/2410-132X-2020-6-1-2-52-61.