D. Muller, J. Gassen, L. Kremer, H.J. Pross, F. Scheuer, et al.. Lambshift measurement in hydrogen-like Phophorus.
EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 1988, 5, pp.503.
⟨in2p3-00006238⟩