A. Alijah et A. Vonhopffgarten, PHOTOIONIZATION OF ATOMIC-HYDROGEN IN ELECTRIC-FIELDS - LINESHAPES, Journal of physics. B, Atomic molecular and optical physics, 27(5), 1994, pp. 843-853
Fano- and Lorentz-type profile formulae are tested for Stark resonance
s against exact quantum results. If background terms are included, bot
h work very satisfactorily for a wide range of resonances.