- Андрей Серапионович Николаев, Andrei Serapionovich Nikolaev, “Разложение Като в теории возмущений классической механики и явное выражение для генератора Депри”, Теоретическая и математическая физика, 182, № 3, 2015, 465
- Andrey Nikolaev, “Kato expansion in quantum canonical perturbation theory”, Journal of Mathematical Physics, 57, № 6, 2016, 062102
- Adelio Matamala-V�squez, “Ladder operators in commutator perturbation method”, Int. J. Quant. Chem., 68, № 2, 1998, 79
- A. S. Nikolaev, “Kato perturbative expansion in classical mechanics and an explicit expression for the Deprit generator”, Theor Math Phys, 182, № 3, 2015, 407
- Kaoutar Ghomari, Bekkai Messirdi, “Quantum Birkhoff–Gustavson normal form in some completely resonant cases”, Journal of Mathematical Analysis and Applications, 378, № 1, 2011, 306
- I.Y. Dodin, A.I. Zhmoginov, N.J. Fisch, “Manley–Rowe relations for an arbitrary discrete system”, Physics Letters A, 372, № 39, 2008, 6094