AN UPPER LIMIT TO THE ELECTRON DENSITY NEAR THE EARTHS ORBIT

[1] ALLEN, 1946, MN, V106

[2] Baumbach, 1937, ASTRON NACHR, V263, P121, DOI [10.1002/asna.19372630602, DOI 10.1002/ASNA.19372630602]

[3] CHAPMAN, 1931, TERR MAGN ATMOS ELEC, V36, P171

[4] CHAPMAN, 1931, TERR MAG ATM ELEC, V36, P77

[5] Chapman S., 1932, J GEOPHYS RES, V37, P147, DOI [10.1029/te037i002p00147, DOI 10.1029/TE037I002P00147]

[6] Chapman S., 1933, TERR MAGN ATMOS ELEC, V38, P79

[7] COMPTON, 1946, XRAYS THEORY EXPT

[8] DUFAY, 1925, CR, V181, P399

[9] ELVEY, 1937, AP J, V86, P84

[10] ELVEY, 1937, AP J, V86, P342

[1] ALLEN, 1946, MN, V106

[2] Baumbach, 1937, ASTRON NACHR, V263, P121, DOI [10.1002/asna.19372630602, DOI 10.1002/ASNA.19372630602]

[3] CHAPMAN, 1931, TERR MAGN ATMOS ELEC, V36, P171

[4] CHAPMAN, 1931, TERR MAG ATM ELEC, V36, P77

[5] Chapman S., 1932, J GEOPHYS RES, V37, P147, DOI [10.1029/te037i002p00147, DOI 10.1029/TE037I002P00147]

[6] Chapman S., 1933, TERR MAGN ATMOS ELEC, V38, P79

[7] COMPTON, 1946, XRAYS THEORY EXPT

[8] DUFAY, 1925, CR, V181, P399

[9] ELVEY, 1937, AP J, V86, P84

[10] ELVEY, 1937, AP J, V86, P342