@article {MR2858345,
	title = {Stability radius of implicit dynamic equations with constant coefficients on time scales},
	journal = {Systems Control Lett.},
	volume = {60},
	number = {8},
	year = {2011},
	pages = {596{\textendash}603},
	issn = {0167-6911},
	doi = {10.1016/j.sysconle.2011.04.018},
	url = {http://db.lic.vnu.edu.vn:2080/10.1016/j.sysconle.2011.04.018},
	author = {Nguyen Huu Du and Thuan, Do Duc and Liem, Nguyen Chi}
}
