Mathew, J. (1972). Methods of intermediate problems for eigenvalues: Theory and ramifications. Academic Press.
Trích dẫn kiểu ChicagoMathew, Joseph. Methods of Intermediate Problems for Eigenvalues: Theory and Ramifications. New York: Academic Press, 1972.
Trích dẫn MLAMathew, Joseph. Methods of Intermediate Problems for Eigenvalues: Theory and Ramifications. Academic Press, 1972.
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