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- [23] The asymptotics of solutions of systems of differential equations with a small parameter for large times TRUDY INSTITUTA MATEMATIKI I MEKHANIKI URO RAN, 2005, 11 (01): : 97 - 110
- [28] ZEROS SOLUTIONS OF DIFFERENTIAL-EQUATIONS WITH RETARDATIONAL ARGUMENT VESTNIK MOSKOVSKOGO UNIVERSITETA SERIYA 1 MATEMATIKA MEKHANIKA, 1979, (04): : 3 - 7