The electric stress at which ionisation begins in air.

[1] RUSSELL, ALTERNATING CURRENTS, V1, P102

[2] RUSSELL, 1910, PHIL MAG OCT

[3] SHAW PE, P PHYS SOC, V20, P289

[4] 1910, P AM I ELEC ENG, V29, P1059

[5] P PHYS SOC, V20, P73

[6] 1908, PHIL MAG, V16, P456

[7] 1904, AM I ELEC ENG, V23

[8] 1906, PHIL MAG, V2, P258

[9] 1898, T AM I ELEC ENG, V15, P281

[10] 1890, PHIL MAG FEB

[1] RUSSELL, ALTERNATING CURRENTS, V1, P102

[2] RUSSELL, 1910, PHIL MAG OCT

[3] SHAW PE, P PHYS SOC, V20, P289

[4] 1910, P AM I ELEC ENG, V29, P1059

[5] P PHYS SOC, V20, P73

[6] 1908, PHIL MAG, V16, P456

[7] 1904, AM I ELEC ENG, V23

[8] 1906, PHIL MAG, V2, P258

[9] 1898, T AM I ELEC ENG, V15, P281

[10] 1890, PHIL MAG FEB