@book{23742,
	author = {Roland,John F.},
	title = {CCSP Cisco Secure VPN Exam Certification Guide},
	publisher = {Pearson Education Publisher},
	year = {2004},
	address = {New Delhi},
	url = {https://libgen.is/book/index.php?md5=EDF60E4A3327AC33C4C896B0B805B785}
}