Galindo, Cipriano Multiple Abstraction Hierachies for Mobile Robot Operation in Large Environments [electronic resource] by Cipriano Galindo and Juan-Antonio Fern ndez-Madrigal - Berlin Springer 2007 http://dx.doi.org/10.1007/978-3-540-72690-6 ISBN: 9783540726906 Dewey Class. No.: 629.893 / (e book)