PHYSICS LETTERS A, cilt.259, sa.2, ss.168-170, 1999 (SCI-Expanded)
The bi-Hamiltonian structure of original Hirota-Satsuma system proposed by Roy [Phys. Lett. A 249 (1999) 55] based on a modification of the bi-Hamiltonian structure of Ito system is incorrect. (C) 1999 Published by Elsevier Science B.V. All rights reserved.