Hugo Ferreira Ricardo Martins Eduardo Marques José Pinto A Martins J Almeida João Borges de Sousa E Silva January 2007 IEEE Robótica 2007 - 7th Conference on Mobile Robots and Competitions, Paderne, Portugal 2007 https://recipp.ipp.pt/bitstream/10400.22/6980/1/ART_FerreiraHugo5_2007.pdf http://dx.doi.org/http://hdl.handle.net/10400.22/6980
