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- [1] FORCED VIBRATIONS FOR A NON-LINEAR WAVE-EQUATION COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE I-MATHEMATIQUE, 1983, 297 (01): : 29 - 32
- [5] CERTAIN INVARIANT SOLUTIONS FOR A NON-LINEAR WAVE-EQUATION UKRAINSKII FIZICHESKII ZHURNAL, 1982, 27 (05): : 787 - 788
- [6] THE COMPLETE WAVE-EQUATION OF A NON-LINEAR POLYATOMIC MOLECULE JOURNAL OF CHEMICAL PHYSICS, 1981, 75 (05): : 2306 - 2313