000			00344nam a2200157Ia 4500
005			20250425160809.0
008			250425s9999 xx 000 0 und d
041			_aeng
082			_a623.81
245		0	_aAN ANALYSIS OF PRELIMINARY
250			_aS.E.
260			_aS.L.
260			_aSin Pais _bS.E. _c1977
942			_c01
010			_a5422
999			_c196314 _d196314