TY - JOUR AU - David Hummer AU - S. Voels BT - Astronomy and Astrophysics DA - 03/1988 N1 - JILA Pub. 3626 PY - 1988 EP - 279 EP - 280 T2 - Astronomy and Astrophysics TI - Collisional-radiative switching: a powerful technique for converging non-LTE calculations UR - http://adsabs.harvard.edu/full/1988A\%26A...192..279H VL - 192 SN - 0004-6361 ER -