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| 020 | _c0 | ||
| 100 | _aGUPTA,P.P. AND YADAV,R.P.S. AND MALIK,G.S. | ||
| 245 | _aMATHEMATICAL PHYSICS | ||
| 260 |
_c1988 _bKEDAR NATH RAM NATH |
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| 650 | _aMATHEMATICAL PHYSICS | ||
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