Spectra of heliumlike carbon, aluminium and argon under strongly coupled plasma A. N. Sil, J. Anton, S. Fritzsche, P. K. Mukherjee and B. Fricke Eur. Phys. J. D, 55 3 (2009) 645-652 Published online: 03 October 2009 DOI: 10.1140/epjd/e2009-00258-6