APA

Lechtenfeld O., Nersessian A. P. & Yeghikyan V.Action-angle variables for dihedral systems on the circle. : .

Chicago

Lechtenfeld O, Nersessian A P and Yeghikyan V.Action-angle variables for dihedral systems on the circle. : .

Harvard

Lechtenfeld O., Nersessian A. P. and Yeghikyan V.Action-angle variables for dihedral systems on the circle. : .

MLA

Lechtenfeld O, Nersessian A P and Yeghikyan V.: . .