[1] Mitropolsky Yu.A., Lykova O.B. Integral manifolds in nonlinear mechanics. -M.: Nauka, 1973. - 512 p.

[2] Strygin V.V., Sobolev V.A. Separation of motion by the method of integral manifolds. - M.:Nauka, 1988. - 256 p.

[3] Voropaeva, N.V.; Sobolev, V.A. Constructive method of splitting of singularly perturbed systems  // Differential Equations. - 1995.-31, № 44. - С. 569-578.

[4] Sobolev V.A. Decomposition of linear singularly perturbed systems // Acta Math. Hung. – 1987.– 49 , № 3-4. – P. 365-376.

[5] Cherevko I.M. Splitting of linear singularly perturbed differential-functional equations // Doklady. NAS of Ukraine. - 2002. - № 6. - P. 32-36.

[6] Semenova M.M. Decomposition of systems with several time scales // Mechatronics, Automation, Control. - 2004. -8. - P. 6-11.

[7] Selskyi S.S., Cherevko I.M. Splitting of systems of linear differential singularly perturbed equations // Scientific Bulletin of Chernivtsi National University. Series: mathematics: Collection of scientific works - 1, № 3. - Chernivtsi: CHNU, 2011. P. 104-107.

[8] Osipova O.V., Cherevko I.M. Splitting of multi-temperature singularly perturbed linear systems // Scientific Bulletin of Chernivtsi National University. Series: mathematics: Collection of scientific works - 2, № 1. - Chernivtsi: CHNU, 2012. P. 78-83.

[9] Voropaeva N.V., Sobolev V.A. Geometrical decomposition of singularly perturbed systems. - M.: Fizmatlit, 2009. - 256 p.