@article{CUr/Mul/1998, author = "Urdiales Garc{\'i}a, Cristina and Bandera Rubio, Antonio Jes{\'u}s and Arrebola P{\'e}rez, Fabi{\'a}n and Sandoval Hern{\'a}ndez, Francisco", journal = "Electronics Letters, Vol. 34, No. 2", pages = "pp. 223-224", title = "{M}ulti-level path planning algorithm for autonomous robots", year = "1998", }