@article {138,
	title = {Development and evaluation of a Web 2.0 annotation system as a learning tool in an e-learning environment},
	journal = {Computers \& Education},
	volume = {58},
	year = {2012},
	pages = {1094{\textendash}1105},
	keywords = {Annotation system, LMS, Online learning, Usability, Web 2.0},
	issn = {0360-1315},
	doi = {10.1016/j.compedu.2011.12.017},
	url = {http://www.sciencedirect.com/science/article/pii/S0360131511003332},
	author = {Chen, Yu-Chien and Hwang, Ren-Hung and Wang, Cheng-Yu}
}
