S. P. Meacham, P. J. Morrison, G. R. Flierl, “Hamiltonian moment reduction for describing vortices in shear”, Physics of Fluids, 9, no. 8, 1997, 2310
E. Gagarina, J. van der Vegt, O. Bokhove, “Horizontal circulation and jumps in Hamiltonian wave models”, Nonlin. Processes Geophys., 20, no. 4, 2013, 483
Rui Tao, Hongxiang Ren, Yunjin Tong, Shiying Xiong, “Construction and evolution of knotted vortex tubes in incompressible Schrödinger flow”, Physics of Fluids, 33, no. 7, 2021, 077112
C. Robin Graham, Frank S. Henyey, “Clebsch representation near points where the vorticity vanishes”, Physics of Fluids, 12, no. 4, 2000, 744
R. Jackiw, So-Young Pi, “Creation and evolution of magnetic helicity”, Phys. Rev. D, 61, no. 10, 2000, 105015
John M. Cornwall, “Topological charge carried by nexuses and center vortices”, Phys. Rev. D, 65, no. 8, 2002, 085045
Daniel W.F. Alves, Carlos Hoyos, Horatiu Nastase, Jacob Sonnenschein, “Knotted solutions for linear and nonlinear theories: Electromagnetism and fluid dynamics”, Physics Letters B, 773, 2017, 412
A.P. Protogenov, “Knots and links in the order parameter distributions of strongly correlated systems”, Uspekhi Fizicheskikh Nauk, 176, no. 7, 2006, 689
A. Frenkel, “A new dynamical invariant - topological charge in fluid mechanics”, Physics Letters A, 88, no. 5, 1982, 231
A F Ranada, “Topological electromagnetism”, J. Phys. A: Math. Gen., 25, no. 6, 1992, 1621