2

M-regions and solar activity

Year:
1956
Language:
english
File:
PDF, 443 KB
english, 1956
4

The asymmetry of solar activity in the years 1959–1969

Year:
1971
Language:
english
File:
PDF, 608 KB
english, 1971
20

Prognose für das nächste Sonnenfleckenmaximum

Year:
1936
Language:
german
File:
PDF, 136 KB
german, 1936
35

Spectroscopic problems of the solar corona

Year:
1946
Language:
english
File:
PDF, 304 KB
english, 1946
37

The Swiss Federal Observatory, Zürich

Year:
1968
Language:
english
File:
PDF, 562 KB
english, 1968
38

The structure of the monochromatic corona in the surroundings of prominences

Year:
1970
Language:
english
File:
PDF, 497 KB
english, 1970
39

A sunspot with a peculiar motion

Year:
1980
Language:
english
File:
PDF, 92 KB
english, 1980
40

Cyclic variations of the polar coronal hole

Year:
1981
Language:
english
File:
PDF, 460 KB
english, 1981
41

Threadlike coronal streamers

Year:
1972
Language:
english
File:
PDF, 287 KB
english, 1972
42

The excitation of the coronal line 5303 Å

Year:
1975
Language:
english
File:
PDF, 410 KB
english, 1975
43

A secondary polar zone of solar prominences

Year:
1973
Language:
english
File:
PDF, 521 KB
english, 1973
44

The parameters of solar cycle no. 21

Year:
1981
Language:
english
File:
PDF, 37 KB
english, 1981
45

A twin flare in symmetrical sunspot groups

Year:
1981
Language:
english
File:
PDF, 444 KB
english, 1981
46

The limb flare of August 11, 1972

Year:
1973
Language:
english
File:
PDF, 433 KB
english, 1973
47

The height of the 9 cm solar emission

Year:
1978
Language:
english
File:
PDF, 126 KB
english, 1978
48

The coronal hole at the 7 March 1970 solar eclipse

Year:
1975
Language:
english
File:
PDF, 411 KB
english, 1975