000			00365pam a2200133a 44500
082			_aNASA _bTN D-5541
100			_aSchoen,Alan H
245	1		_aINFINITE PERIODIC MINIMAL SURFACES WITHOUT SELF-INTERSECTIONS
260			_a _bNasa, Washington, D.C. _c1970
300			_a92
500			_aBound With Nasa Tn D-5540,5542-5549
964			_gCIRC
997			_aTR13697 C
999			_c396965 _d396965