TY - JOUR A1 - Sithole, G. T1 - INDOOR SPACE ROUTING GRAPHS: VISIBILITY, ENCODING, ENCRYPTION AND ATTENUATION JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XLII-4 SP - 579 EP - 585 Y1 - 2018/09/19 PB - Copernicus Publications SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XLII-4/579/2018/ L1 - https://isprs-archives.copernicus.org/articles/XLII-4/579/2018/isprs-archives-XLII-4-579-2018.pdf DO - 10.5194/isprs-archives-XLII-4-579-2018 ER -