Citace podle APA

Parmeggiani, A. (2007). On positivity of certain systems of partial differential equations. National Academy of Sciences.

Styl Chicago

Parmeggiani, Alberto. On Positivity of Certain Systems of Partial Differential Equations. National Academy of Sciences, 2007.

Citace podle MLA

Parmeggiani, Alberto. On Positivity of Certain Systems of Partial Differential Equations. National Academy of Sciences, 2007.

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