Elena Kartaschova, Loredana Tec,
"A constructive method for computing generalized Manley-Rowe constants of motion"
, in Communications in Computational Physics, Vol. 14, Nummer 4, Seite(n) 1094-1102, 2013, ISSN: 1991-7120
Original Titel:
A constructive method for computing generalized Manley-Rowe constants of motion