1. I. M. Khalatnikov, An Introduction to the Theory of Superfluidity (CRC, Taylor and Francis, Boca Raton, 2018).
2. I. M. Khalatnikov, J. Low Temp. Phys. 82, 93 (1991).
3. I. M. Khalatnikov, G. V. Kolmakov, and V. L. Pokrovskii, J. Exp. Theor. Phys. 80, 873 (1995).
4. I. M. Khalatnikov and M. Kroyter, J. Low Temp. Phys. 88, 626 (1999).
5. L. D. Landau and E. M. Lifshitz, Course of Theoretical Physics, Vol. 6: Fluid Mechanics (Nauka, Moscow, 1986; Pergamon, New York, 1987).