THE TECHNIQUES OF HIGH RESOLUTION, DOUBLE-BEAM, TWO-BEAM INTERFEROMETRY WITH A FAR INFRARED LAMELLAR GRATING INTERFEROMETER J. M. DOWLING et R. T. HALLJ. Phys. Colloques, 28 C2 (1967) C2-156-C2-164DOI: https://doi.org/10.1051/jphyscol:1967229