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- [4] RECONSTRUCTION OF HILL EQUATIONS BY THE IMPEDANCE IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII MATEMATIKA, 1984, (01): : 55 - 61
- [7] Nonoscillation Criteria for Discrete Hill equation 2017 14TH INTERNATIONAL CONFERENCE ON ELECTRICAL ENGINEERING, COMPUTING SCIENCE AND AUTOMATIC CONTROL (CCE), 2017,