The prospects and problems of integrating sketch maps with geographic information systems to understand environmental perception: a case study of mapping youth fear in Los Angeles gang neighborhoods
Author(s): Curtis, J. W., Shiau, E., Lowery, B., Sloane, D., Hennigan, K., & Curtis, A. Published in:Environment and Planning B: Planning and Design, 41(2) 251 – 271 Publication year: 2014.