@article{dickman_araujo jr._ben-avraham_2003,  title={Variable survival exponents in history-dependent random walks: hard movable reflector},  volume={33},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332003000300006},  DOI={10.1590/S0103-97332003000300006},  number={3},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Dickman, Ronald and Araujo Jr., Francisco Fontenele and ben-Avraham, Daniel},  year={2003},  month={Sep},  pages={450–457} }