Collision induced modification of spectral lines in the first autoionization region of barium Kourosh Afrousheh, Yacoub Makdisi, Jahja Kokaj, Mustafa Marafi, Joseph Mathew and Goran Pichler Eur. Phys. J. D, 67 12 (2013) 262 Published online: 12 December 2013 DOI: 10.1140/epjd/e2013-40542-2