Internal consistency in the close-coupling approach to positron collisions with atoms Igor Bray, Jackson J. Bailey, Dmitry V. Fursa, Alisher S. Kadyrov and Ravshanbeck Utamuratov Eur. Phys. J. D, 70 1 (2016) 6 Published online: 12 January 2016 DOI: 10.1140/epjd/e2015-60591-7