Παραπομπή σε μορφή APA (7η εκδ.)

(1990). The simultaneous integration of many trajectories using nilpotent normal forms / Matthew A. Grayson, Robert Grossman.

Παραπομπή σε μορφή Chicago (17η εκδ.)

The Simultaneous Integration of Many Trajectories Using Nilpotent Normal Forms / Matthew A. Grayson, Robert Grossman. 1990.

Παραπομπή σε μορφή MLA (9th εκδ.)

The Simultaneous Integration of Many Trajectories Using Nilpotent Normal Forms / Matthew A. Grayson, Robert Grossman. 1990.