@article{Biedl2003,
 author={Therese Biedl and  Jonathan F. Buss and  Erik D. Demaine and  Martin L. Demaine and  Mohammadtaghi Hajiaghayi and  Tomas Vinar},
 title={{Palindrome recognition using a multidimensional tape }},
 journal={Theoretical Computer Science},
 volume={302},
 number={1-3},
 pages={475--480},
 month={13 June},
 year={2003}
}