J. W. Swift, S. H. Strogatz, and K. Wiesenfeld, “Averaging of globally coupled oscillators,” Physica D 55 (1992), pp. 239–250.
169
S. Wataliabe and S. H. Strogatz, “Integrability of a globally coupled oscillator array,” Physical Review Letters 70 (1993), pp. 2391–2394; “Constants of motions for superconducting Josephson arrays,” Physica D 74 (1994), pp. 197–253.
