@ARTICLE{Xing_J._Calculation_2012, author={Xing, J. and Chen, C. and P. Wu}, volume={60}, number={No 1}, journal={Bulletin of the Polish Academy of Sciences Technical Sciences}, pages={151-158}, howpublished={online}, year={2012}, title={Calculation of interval damping ratio under uncertain load in power system}, URL={http://www.czasopisma.pan.pl/Content/83509/PDF/21_paper.pdf}, doi={10.2478/v10175-012-0021-x}, }