@ARTICLE{
author={Kumanovska-Barandovska O,Atanackovic Olga},
year={2010},
title={The use of iteration factors in the solution of the NLTE line transfer problem-II. Multilevel atom},
journal={JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER},
volume={111},
number={5},
pages={708-722},
document_type={Article},
} 

