-@INPROCEEDINGS{yamauchi,
-author={Yamauchi, B.},
-booktitle={Robotics and Automation, 1996. Proceedings., 1996 IEEE International Conference on}, title={Mobile robot localization in dynamic environments using dead reckoning and evidence grids},
-year={1996},
-month={april},
-volume={2},
-number={},
-pages={1401 -1406 vol.2},
-keywords={ELDEN learning system;adaptive place network;dead reckoning;dynamic environments;evidence grids;hill-climbing algorithm;lasting changes;mobile robot localization;navigation;position estimate;transient changes;learning systems;mobile robots;navigation;path planning;position control;sonar;ultrasonic transducer arrays;},
-doi={10.1109/ROBOT.1996.506902},
-ISSN={1050-4729},}
+@InProceedings{ yamauchi,
+ author = "B. Yamauchi",
+ booktitle = "Robotics and Automation, 1996. Proceedings., 1996 IEEE International Conference on",
+ title = "Mobile robot localization in dynamic environments using dead reckoning and evidence grids",
+ year = "1996",
+ month = "april",
+ volume = "2",
+ number = "",
+ pages = "1401--1406 vol.2",
+ keywords = "ELDEN learning system, adaptive place network, dead reckoning, dynamic environments, evidence grids, hill-climbing algorithm, lasting changes, mobile robot localization, navigation, position estimate, transient changes, learning systems, mobile robots, navigation, path planning, position control, sonar, ultrasonic transducer arrays",
+ doi = "10.1109/ROBOT.1996.506902",
+ ISSN = "1050-4729"
+}
+
+@InProceedings{ borenstein,
+ author = "J. Borenstein",
+ booktitle = "Robotics and Automation, 1994. Proceedings., 1994 IEEE International Conference on",
+ title = "The CLAPPER: a dual-drive mobile robot with internal correction of dead-reckoning errors",
+ year = "1994",
+ month = "may",
+ volume = "",
+ number = "",
+ pages = "3085--3090 vol.4",
+ keywords = " CLAPPER, Compliant Linkage Autonomous Platform with Position Error Recovery, bearing, compliant linkage, dead-reckoning errors, differential-drive mobile robots, dual-drive mobile robot, internal correction, linear encoder, mobile robots, multi-degree-of-freedom mobile platform, positioning accuracy, relative distance, relative position, rotary encoders, wheel encoders, distance measurement, error correction, mobile robots, path planning, position control",
+ doi = "10.1109/ROBOT.1994.351095",
+ ISSN = ""
+}