Eastham, M. (1973). Spectral theory of periodic differential equations. Scottish academic press.
शिकागो स्टाइल उद्धरणEastham, MSP. Spectral Theory of Periodic Differential Equations. Scottish academic press, 1973.
एमएलए उद्धरणEastham, MSP. Spectral Theory of Periodic Differential Equations. Scottish academic press, 1973.
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