Burkova, N.A., and N.V. Afanasyeva. “Whittaker Asymptotics of Shell-Model Wave Functions for Excited States of 13C”. Physical Sciences and Technology 3, no. 2 (May 3, 2018): 41–48. Accessed January 4, 2025. https://phst.kaznu.kz/index.php/journal/article/view/105.