Observations of the profiles of solar UV emission lines and their analysis in terms of the heating and production of the corona - Boland, B. C.; Engstrom, S. F. T.; Jones, B. B.; McWhirter, R. W. P.; Thonemann, P. C.; Wilson, R. (Springer, 1972)
http://dx.doi.org/10.1007/BF00213496
Keywords: U