Reeve, Charles P. The calibration of an optical flat by interferometric comparision to a master optical flat Reeve, Charles P. - Springfield U. S. Department of Commerce 1975 - ii, 36p. - NBSIR 75-975 . Subjects--Topical Terms: InterferometryNASA ThesaurusOptical flat Universal Decimal Class. No.: 535.41 / REE