% bibliography style is not predefined; authors can apply their own,
% but it should be sent to matjaz.gams@ijs.si with the accepted paper
\begin{thebibliography}{99}

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	\bibitem{WGM06} Yue Wang, Jie Gao, and Joseph S.B. Mitchell (2006) Boundary recognition in sensor networks by topological methods, {\it 5MobiCom'06}.
	
	\bibitem{FGG04} Q. Fang, J. Gao, and L. J. Guibas (2004) Locating and Bypassing Routing Holes in Sensor Networks, {\it Proc. of INFOCOM'04}.
	
	\bibitem{LQHV11} Le Nguyen, Quan Bui, Hieu Nguyen, and Khanh-Van Nguyen (2011) Efficient approximation of routing holes in wireless sensor networks, {\it ACM Proc. of the Second Symposium on Information and Communication Technology}.

	\bibitem{TLHV15} Trong Nguyen, Le Nguyen, Hau Phan and Khanh-Van Nguyen (2015) A Distributed Protocol for Detecting and Updating Hole Boundary in Wireless Sensor Networks, {\it ACM Proc. of the Second Symposium on Information and Communication Technology(SoICT 2015)}.
	
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	\bibitem{TBK09} G. Tan, M. Bertier, and A.-M. Kermarrec (2009) Visibility-graph-based shortest-path geographic routing in sensor networks, {\it Proc. of IEEE
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	\bibitem{KYX13} Zhiping Kang, Honglin Yu and Qingyu Xiong (2013) Detection and Recovery of Coverage Holes in Wireless Sensor Networks, {\it JOURNAL OF NETWORKS, VOL. 8, NO. 4, APRIL 2013}, pp. 822--828.
	
	\bibitem{KFPF06} A. Kroller and S. P. Fekete and D. Pfisterer and S. Fischer (2006) Deterministic Boundary Recognition and Topology Extraction for Large Sensor Networks, {\it Proc. of SODA '06, the seventeenth annual ACM-SIAM symposium on Discrete algorithm}, 2006.
	
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	\bibitem{MS11} Yen-Wen Chen Hwa-Chun Ma, Prasan Kumar Sahoo (2011) Computational geometry based distributed coverage hole detection protocol for the wireless sensor networks, {\it J. Network and Computer Applications}, pp. 1743--1756.
	
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	\bibitem{GM05} Robert Ghrist and Abubakr Muhammad (2005) Coverage and hole-detection in sensor networks via homology, {\it Proceedings of the 4th international symposium on Information processing in sensor networks}, IEEE Press, pp. 34.
	
	\bibitem{ZZWL13} Yunzhou Zhang, Xiaohua Zhang, Zeyu Wang, Honglei Liu (2013) Virtual Edge Based Coverage Hole Detection Algorithm in Wireless Sensor Networks, {\it  IEEE Wireless Communications and Networking Conference (WCNC): NETWORKS}, pp. 1488--1492.
	
	\bibitem{YPH15} Fucai Yu, Shengli Pan, and Guangmin Hu (2015) Hole Plastic Scheme for Geographic Routing in Wireless Sensor Networks, {\it IEEE ICC 2015 - Ad-hoc and Sensor Networking Symposium}, pp. 6444--6449.
	
	\bibitem{CS12} Wei-Cheng Chu, Kuo-Feng Ssu (2012) Decentralized Boundary Detection without Location Information in Wireless Sensor Networks, {\it IEEE Wireless Communications and Networking Conference: Mobile and Wireless Networks}, pp. 1720--1724.
	
\end{thebibliography}

