000			00394nam a2200145Ia 4500
008			211115s9999 xx 000 0 und d
041			_aeng
100			_aBirjit Singh, Singam.
245		0	_aSome physical distributions in conformally flat space-times /
250			_aPh.D. /
260			_aImphal : _bManipur University , _c1990
300			_a65p :
650			_aspace-time
942			_cRP
999			_c42280 _d42280