1. To para-focusing and powder goniometers: J.C. M. Brentano, Arch. Sc. Phys. et Nat. (4) 44 66 (1917); (5) 1 550 (1919); Proc. Phys. Soc. 37 184 (1925); 49 61 (1937); Journ. Appl. Phys. 17 420 (1946).
2. To extinction, differential absorption and anomalous scattering: Baxter and Brentano Z. f. Phys. 89 720 (1934); Phil. Mag. (7) 24 473 (1937);J.C. M. Brentano Proc. Phys. Soc. 47 932 (1935), 50 247 (1938); Brentano, Honeyburne and Berry, Proc. Phys. Soc. 51 668 (1939).
3. To quantitative photographic methods: Brentano, Baxter, Cotton, Phil. Mag. (7) 17 370 (1934); J. C. M. Brentano, Journ. Opt. Soc. A. 35 382 (1945); Journ. Phot. Sc. 2 150 (1954).
4. To scintillation counting: Ladany and Brentano, Phys. Rev. 92 850 (1953); Rev. Sc. Instr. 25 1028 (1954).