1. K. G. Guderley and J. V. Armitage, “A General Method for the Determination of Best Supersonic Rocket Nozzles,” in Theory of Optimal Aerodynamic Shapes (Mir, Moscow, 1969), pp. 172–194 [in Russian].
2. A. L. Gonor and A. N. Kraiko, “Some Results Concerning Optimal Shapes at Super- and Hypersonic Velocities,” in Theory of Optimal Aerodynamic Shapes (Mir, Moscow, 1969), pp. 455–492 [in Russian].
3. A. N. Kraiko, Variational Problems in Gas Dynamics (Nauka, Moscow, 1979) [in Russian].
4. Yu. D. Shmyglevskii, Analytical Studies of Fluid Dynamics (Editorial URSS, Moscow, 1999) [in Russian].
5. S. A. Takovitskii, “Analytical Solution in the Problem of Constructing Axisymmetric Noses with Minimum Wave Drag,” Izv. Ross. Akad. Nauk, Mekh. Zhidk. Gaza, No. 2, 155–162 (2006).