Παραπομπή σε μορφή APA (7η εκδ.)

Bellman, R. On the validity of truncation for infinite systems of ordinary differential equations associated with nonlinear partial differential equations.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Bellman, Richard. On the Validity of Truncation for Infinite Systems of Ordinary Differential Equations Associated with Nonlinear Partial Differential Equations.

Παραπομπή σε μορφή MLA (9th εκδ.)

Bellman, Richard. On the Validity of Truncation for Infinite Systems of Ordinary Differential Equations Associated with Nonlinear Partial Differential Equations.