Citazione APA

Titehmarsh, E. (1970). Eigenfunction expansions associated with second order differential equations. Clarendon.

Stile di citazione Chicago

Titehmarsh, E.C. Eigenfunction Expansions Associated with Second Order Differential Equations. Oxford: Clarendon, 1970.

Citazione MLA

Titehmarsh, E.C. Eigenfunction Expansions Associated with Second Order Differential Equations. Clarendon, 1970.

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