Paper  bibtex   

@inproceedings{ BEAM-ToDo-AAAI-SSS07-Final,
 title = {Enhancing Interaction with To-Do Lists Using Artificial Assistants},
 author = {Yolanda Gil and Timothy Chklovski},
 booktitle = {Proceedings of the AAAI Spring Symposium on Interaction Challenges for Artificial Assistants},  
 address = {Stanford, CA},
 year = {2007},
 url = {http://www.isi.edu/~gil/papers/BEAM-ToDo-AAAI-SSS07-Final.pdf }
 }