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- [3] NEW PROPERTIES OF THE SPHEROIDAL WAVE-EQUATION LETTERE AL NUOVO CIMENTO, 1982, 35 (01): : 25 - 28
- [4] NEW FORM OF WAVE-EQUATION FOR LAYERED MEDIUM IZVESTIYA AKADEMII NAUK SSSR FIZIKA ATMOSFERY I OKEANA, 1985, 21 (12): : 1252 - 1259
- [6] NEW CHEMICAL WAVE-EQUATION FOR IONIC SYSTEMS JOURNAL OF CHEMICAL PHYSICS, 1977, 67 (08): : 3771 - 3776
- [7] NEW SOLUTIONS OF THE WAVE-EQUATION BY REDUCTION TO THE HEAT-EQUATION JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1995, 28 (18): : 5291 - 5304