"Address." Bitcoin.it. N.p., 16 Jan. 2013. Web. 2 Feb. 2014.

"Bitcoin." Bitcoin.it. N.p., 10 Dec. 2013. Web. 30 Jan. 2014.

"Bitcoin Block Explorer." BlockChain. N.p., n.d. Web. 19 Feb. 2014.

"Bitcoin: Transaction Block Chains." Khan Academy. Khan Academy, n.d. Web. 30 Jan. 2014.

"Blockchain." Bitcoin.it. N.p., 20 Jan. 2014. Web. 19 Feb. 2014.

Cieśla, Kacper. “Bitstamp.” Bitcoinity.org. N.p., 19 Feb. 2014. 19 Feb. 2014.

"Gold Price." Gold Price. GOLD PRICE PTY LTD, n.d. Web. 20 Feb. 2014.

Hajdarbegovic, Nermin. "Bitcoin Miners Ditch Ghash.io Pool Over Fears of 51% 

Attack."CoinDesk. N.p., 9 Jan. 2014. Web. 20 Feb. 2014.

Nakamoto, Satoshi. Bitcoin Source Code. N.p.: n.p., 2009. CPP.

Nielsen, Michael. "How the Bitcoin Protocol Actually Works." Michaelnielsen.org. N.p., 6 Dec. 

2013. Web. 17 Feb. 2014.