https://bitbucket.org/mobileprogrammingllc/cig_ios

Mobileorchard.com

https://www.hackingwithswift.com/example-code/system/how-to-create-a-peer-to-peer-network-using-the-multipeer-connectivity-framework

http://radar.oreilly.com/2014/09/multipeer-connectivity-on-ios-8-with-swift.html

http://codereview.stackexchange.com/questions/78318/getting-wifi-ssid-on-ios-in-swift

https://www.ralfebert.de/tutorials/ios-swift-multipeer-connectivity/

http://stackoverflow.com/questions/31134025/swift-multipeerconnectivity-type-does-not-conform-to-protocol