- Андрей Серапионович Николаев, Andrei Serapionovich Nikolaev, “Разложение Като в теории возмущений классической механики и явное выражение для генератора Депри”, Теоретическая и математическая физика, 182, no. 3, 2015, 465

- Andrey Nikolaev, “Kato expansion in quantum canonical perturbation theory”, Journal of Mathematical Physics, 57, no. 6, 2016, 062102

- Adelio Matamala-V�squez, “Ladder operators in commutator perturbation method”, Int. J. Quant. Chem., 68, no. 2, 1998, 79

- A. S. Nikolaev, “Kato perturbative expansion in classical mechanics and an explicit expression for the Deprit generator”, Theor Math Phys, 182, no. 3, 2015, 407

- Kaoutar Ghomari, Bekkai Messirdi, “Quantum Birkhoff–Gustavson normal form in some completely resonant cases”, Journal of Mathematical Analysis and Applications, 378, no. 1, 2011, 306

- I.Y. Dodin, A.I. Zhmoginov, N.J. Fisch, “Manley–Rowe relations for an arbitrary discrete system”, Physics Letters A, 372, no. 39, 2008, 6094

- A. A. Gusev, N. A. Chekanov, V. A. Rostovtsev, S. I. Vinitsky, Y. Uwano, “A Comparison of Algorithms for the Normalization and Quantization of Polynomial Hamiltonians”, Programming and Computer Software, 30, no. 2, 2004, 75
