Effect of orthogonalization on total ionization cross sections by electron impact: application to small moleculesSamra Nehaoua, Salim Houamer, Claude Dal Cappello, Mehdi Chinoune, Alexander Galstyan and Amulya Chandra RoyEur. Phys. J. D, 69 3 (2015) 86DOI: https://doi.org/10.1140/epjd/e2015-60005-0