Gaya APA

Nier, F., Helffer, B. (2005). Hypoelliptic Estimates and Spectral Theory for Fokker-Planck Operators and Witten Laplacians (1st ed. 2005.). Berlin, Heidelberg: Springer.

Gaya MLA

Nier, Francis.., Helffer, Bernard.. "Hypoelliptic Estimates and Spectral Theory for Fokker-Planck Operators and Witten Laplacians". 1st ed. 2005. Berlin, Heidelberg: Springer, 2005. E Book.