@article {song2018characterizing,
	title = {Characterizing and exploring users{\textquoteright} task completion process at different stages in learning related tasks},
	journal = {Proceedings of the Association for Information Science and Technology},
	volume = {55},
	number = {1},
	year = {2018},
	pages = {460{\textendash}469},
	author = {Xiaoxuan Song and Chang Liu and Hanrui Liu}
}
