AN INTERFEROMETER WITH INDEPENDENTLY ADJUSTABLE PARAMETERS.STEEL WH.1975; OPT. ACTA; G.B.; DA. 1975; VOL. 22; NO 7; PP. 563-567; ABS. FR. ALLEM.; BIBL. 4 REF.Article

SCANNING FOCUS BY INTERFEROMETRYSTEEL WH.1980; OPT. COMMUNIC.; NLD; DA. 1980; VOL. 32; NO 2; PP. 214-216; BIBL. 2 REF.Article

HOW TO REPRESENT A CUBE CORNERSTEEL WH.1983; APPLIED OPTICS; ISSN 0003-6935; USA; DA. 1983; VOL. 22; NO 6; PP. 761; BIBL. 2 REF.Article

THE ABERRATIONS OF CAT'S EYES IN FOURIER SPECTROMETERS.STEEL WH.1974; OPT. ACTA; G.B.; DA. 1974; VOL. 21; NO 8; PP. 601-610; ABS. ALLEM.; BIBL. 12 REF.Article

PRISMS FOR PRODUCING SLIT BEAMS FROM A LASER.STEEL WH.1977; OPT. ENGNG; U.S.A.; DA. 1977; VOL. 16; NO 1; PP. 83-84; BIBL. 3 REF.Article

LUMINOSITY, THROUGHPUT, OR ETENDUE.STEEL WH.1974; APPL. OPT.; U.S.A.; DA. 1974; VOL. 13; NO 4; PP. 704-705; BIBL. 12 REF.Article

A SIMPLE RADIAL-SHEAR INTERFEROMETER.STEEL WH.1975; OPT. COMMUNIC.; NETHERL.; DA. 1975; VOL. 14; NO 1; PP. 108-109; BIBL. 2 REF.Article

THEORY AND APPLICATION OF POINT-DIFFRACTION INTERFEROMETERS.SMARTT RN; STEEL WH.1975; JAP. J. APPL. PHYS.; JAP.; DA. 1975; VOL. 14; SUPPL. NO 1; PP. 351-356; BIBL. 5 REF.; (OPT. METH. SCI. IND. MEAS. PROC. INT. COMM. OPT. CONF.; TOKYO; 1974)Conference Paper

MEASURING THE RADIUS OF CURVATURE OF SOFT CORNEAL LENSES.STEEL WH; NOACK DB.1977; APPL. OPT.; U.S.A.; DA. 1977; VOL. 16; NO 4; PP. 778-779; BIBL. 6 REF.Article

LIQUID SURFACE INTERFEROMETRY FOR THE STUDY OF SURFACE TOPOGRAPHY.HARIHARAN P; STEEL WH.1974; APPL. OPT.; U.S.A.; DA. 1974; VOL. 13; NO 4; PP. 721-722; BIBL. 11 REF.Article

ARGON LINES FROM ELECTRODELESS MERCURY-198 LAMPS.STEEL WH; WILKINSON FJ.1978; APPL. OPT.; U.S.A.; DA. 1978; VOL. 17; NO 4; PP. 506; BIBL. 4 REF.Article

DOUBLE GRATING INTERFEROMETER WITH VARIABLE LATERAL SHEAR.HARIHARAN P; STEEL WH; WYANT JC et al.1974; OPT. COMMUNIC.; NETHERL.; DA. 1974; VOL. 11; NO 3; PP. 317-320; BIBL. 4 REF.Article

ONE-STEP MULTICOLOUR RAINBOW HOLOGRAMS WITH WIDE ANGLE OF VIEWHARIHARAN P; HEGEDUS ZS; STEEL WH et al.1970; OPT. ACTA; GBR; DA. 1970; VOL. 26; NO 3; PP. 289-291; BIBL. 7 REF.Article