@article{ZhMa16,
	author = {Guohua Zhang and Rudolf Mathar},
	title = "Explicit Constructions for Type-1  QC-LDPC Codes with Girth",
	pages = "460-463",
	journal = "{IEEE} Communications Letters",
	volume = "21",
	number = "3",
	doi = " 10.1109/LCOMM.2016.2634022",
	month = Dec,
	year = 2016,
	hsb = {RWTH-2017-02431},
	}