TY  - BOOK
AU  - Wallace, L.
AU  - Hinkle, K.
AU  - Livingston, W.
TI  - An atlas of sunspot umbral spectra in the visible from 15000 to 25500cm-1 (3920 to 6664 A)
T2  - NSO technical report; no. 1
PY  - 2000///
CY  - Tucson
PB  - National Solar Observatory
KW  - Atlas
KW  - Sunspots
ER  -