Sage, Andrew P.
McGraw-Hill, 1977
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Chung Yik Cho, Rong Kun Jason Tan, John A. Leong, Amandeep S. Sidhu
Springer Nature, 2019
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Adam Liwo
TASK , 2018
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Antoulas, Athanasios C.
Society for Industrial and Applied Mathematics, 2005
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Mahmoud, Magdi S.
Pergamon Press, 1981
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