1. A. Russo and A. Tartaglione, “On the Singular Solutions of the Stationary Navier–Stokes Problem,” Lithuan. Math. J. 53 (4), 423–437 (2013).
2. V. V. Pukhnachev, “Singular Solutions of Navier–Stokes Equations,” “Advances in Mathematical Analysis of Partial Differential Equations. Dedicated to the Memory of O. A. Ladyzhenskaya,” AMS Transl. Ser. 2, 232, 193–218 (2014).
3. O. A. Ladyzhenskaya, The Mathematical Theory of Viscous Incompressible Flow (Nauka, Moscow, 1970; Gordon and Breach, New York, 1969).
4. G. B. Jeffery, “The Two-Dimensional Steady Motion of a Viscous Fluid,” Philos. Mag. Ser. 6, 29 (172), 455–465 (1915).
5. G. Hamel, “Spiralformige Bewegungen zahen Flussigkeiten,” Jahresber. Deutsch. Math.-Verein. 25, 34–60 (1917).