The magnetic polarity of sun-spots

[1] EVERSJED, 1909, KODAIKANAL OBSERVATO, V15

[2] HALE, 1915, P NATL ACAD SCI USA, V1, P385

[3] HALE, MT WILSON CONTR, V30

[4] HALE, MOUNT WILSON COMMUNI, V10

[5] HALE, MT WILSON CONTR, V26

[6] On the probable existence of a magnetic field in sun-spots [J]. ASTROPHYSICAL JOURNAL, 1908, 28 (04) : 315 - 343

[7] Solar vortices [J]. ASTROPHYSICAL JOURNAL, 1908, 28 (02) : 100 - 116

[8] SEARES, MT WILSON CONTR, V72, P5

[9] The displacement-curve of the sun's general magnetic field [J]. ASTROPHYSICAL JOURNAL, 1913, 38 (01) : 99 - 125

[10] STJOHN, 1913, ASTROPHYSICAL J, V37, P322

[1] EVERSJED, 1909, KODAIKANAL OBSERVATO, V15

[2] HALE, 1915, P NATL ACAD SCI USA, V1, P385

[3] HALE, MT WILSON CONTR, V30

[4] HALE, MOUNT WILSON COMMUNI, V10

[5] HALE, MT WILSON CONTR, V26

[6] On the probable existence of a magnetic field in sun-spots [J]. ASTROPHYSICAL JOURNAL, 1908, 28 (04) : 315 - 343

[7] Solar vortices [J]. ASTROPHYSICAL JOURNAL, 1908, 28 (02) : 100 - 116

[8] SEARES, MT WILSON CONTR, V72, P5

[9] The displacement-curve of the sun's general magnetic field [J]. ASTROPHYSICAL JOURNAL, 1913, 38 (01) : 99 - 125

[10] STJOHN, 1913, ASTROPHYSICAL J, V37, P322