Bidur Khanal, Alistair Saddington, Kevin Knowles 2017, 'An Efficiently Parallelized High-Order Aeroacoustics Solver Using a Characteristic-BasedMulti-Block Interface Treatment and Optimized Compact Finite Differencing', Aerospace (Basel)http://www.mdpi.com/2226-4310/4/2/29. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)

Tatiana Petrova, Fedor Shugaev 2016, 'Calculation of the Acoustic Spectrum of a Cylindrical Vortex in Viscous Heat-ConductingGas Based on the Navier–Stokes Equations', Computationhttp://www.mdpi.com/2079-3197/4/3/32. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)