@article {MR1940210,
	title = {On linear implicit non-autonomous systems of difference equations},
	journal = {J. Difference Equ. Appl.},
	volume = {8},
	number = {12},
	year = {2002},
	pages = {1085{\textendash}1105},
	issn = {1023-6198},
	doi = {10.1080/1023619021000053962},
	url = {http://db.lic.vnu.edu.vn:2080/10.1080/1023619021000053962},
	author = {Loi, L. C. and Nguyen Huu Du and Anh, P. K.}
}
