Ferreira, Marcos Antonio Garcia, and Suely da Penha Sanches. “PROPOSAL OF A SIDEWALK ACCESSIBILITY INDEX <a href="http: dx.doi.org 10.4090 juee.2007.v1n1.001009" target=‘blank’>(doi: 10.4090 juee.2007.v1n1.001009)< A>”;. Journal of Urban and Environmental Engineering, vol. 1, no. 1, Sept. 2008, doi:10.4090/juee.2007.v1n1.%p.