TY - JOUR A1 - Cammack, R. G. A1 - Hunt, P. T1 - Multiple Layer Symbol Design for Use with Internet Maps JO - Abstr. Int. Cartogr. Assoc. J1 - ICA-Abs VL - 3 SP - 41 EP - Y1 - 2021/12/13 PB - Copernicus Publications SN - 2570-2106 UR - https://ica-abs.copernicus.org/articles/3/41/2021/ L1 - https://ica-abs.copernicus.org/articles/3/41/2021/ica-abs-3-41-2021.pdf DO - 10.5194/ica-abs-3-41-2021 ER -