A study of light signals in aviation and navigation

[1] BENFORD F, 1926, GEN ELECTR REV, V29, P873

[2] Blondel A, 1911, J PHYS, V1, P530

[3] Houstoun RA, 1930, PHILOS MAG, V10, P416

[4] Madelung E, 1918, PHYS Z, V19, P524

[5] The minimum radiation visually perceptible [J]. ASTROPHYSICAL JOURNAL, 1917, 45 (01) : 60 - 64

[1] BENFORD F, 1926, GEN ELECTR REV, V29, P873

[2] Blondel A, 1911, J PHYS, V1, P530

[3] Houstoun RA, 1930, PHILOS MAG, V10, P416

[4] Madelung E, 1918, PHYS Z, V19, P524

[5] The minimum radiation visually perceptible [J]. ASTROPHYSICAL JOURNAL, 1917, 45 (01) : 60 - 64