Nineteen transitions from the ground configuration 3<i>d</i><sup>2</sup> to the 3<i>d</i><sup>4</sup>ƒ configuration and three transitions from ground to the 3<i>d</i>5<i>p</i> configurations have been observed and measured in the 378–402 Å region for vandanium IV.
© 1978 Optical Society of America
George V. Shalimoff and John G. Conway, "The 3d2-3d4f transitions in V iv," J. Opt. Soc. Am. 68, 267-268 (1978)