TY - JOUR AU - David Hummer BT - Journal of Quantitative Spectroscopy and Radiative Transfer DA - Jan-06-1982 DO - 10.1016/0022-4073(82)90049-8 PY - 1982 SP - 569 EP - 573 T2 - Journal of Quantitative Spectroscopy and Radiative Transfer TI - High order asymptotic expansions of the four kernel functions for line formation with the Voigt profile VL - 27 SN - 00224073 ER -