Tsurutani, T.; and Kasahara, Y.; and Naniwada, M.; "ATLAS: A geographic database system - data structure and language design for geographic information"

[Proceedings] (1980) Computer Graphics Volume 14, Number 3, July, 1980 (Proceedings of the 7th International Conference on Computer Graphics and Interactive Techniques Seattle, Washington, United States SIGRAPH 80)  

Languages mentioned ATLAS {1979} Visual querying system for geographical information systems GDDL {1979} Geographical data description language IGL {1979} Geographical query language