Experimental (e,2e) study of state-to-state interference between autoionizing states of He Béla Paripás, Béla Palásthy and Gábor Pszota Eur. Phys. J. D, 69 2 (2015) 34 Published online: 03 February 2015 DOI: 10.1140/epjd/e2014-50635-y