1. Yu. V. Popov, O. Chuluunbataar, V. L. Shablov, and K. A. Kuzakov, “Processes of multiple ionization with the participation of fast charged particles,” Fiz. Elem. Chastits At. Yadra 41(4), 1019–1074 (2010).
2. N. N. Kalitkin, Numerical Computation Methods (Nauka, Moscow, 1978) [in Russian].
3. Yu. V. Popov, S. A. Zaitsev, and S. I. Vinitskii, “J-matrix method for calculating three-body Coulomb functions and cross sections for physical processes,” Fiz. Elem. Chastits At. Yadra 42(5), 1311–1370 (2011).
4. V. V. Serov and B. B. Joulakian, “Implementation of the external complex scaling method in spheroidal coordinates: impact ionization of molecular hydrogen,” Phys. Rev. A: At., Mol., Opt. Phys. 80, 062713–1-9 (2009).
5. V. V. Serov and B. B. Joulakian, “Calculation of the multifold differential cross section of the electronimpact ionization of molecular hydrogen by prolate spheroidal external complex scaling method with second Born corrections,” Phys. Rev. A: At., Mol., Opt. Phys. 82, 022705–1-6 (2010).