01117nam a2200265Ia 4500 OSt 20220927110122.0 a|||||r|||| 00| 0 ta 220926b |||||||| |||| 00| 0 eng d 129352 Reference Collections RTL RTL eng eng eng "U:(B2893)p1,N77, L8.3" Dutton Geoffrey Ed. 375955 International Advanced Study Symposium On Topclogical Data Structures For Geographic. Information Systems Massachusetts (1st) (1977) 375956 Harvard paper on geographic information systems. Harvard Harvard College 1978 V1 "Harvard University, Laboratory For Computer Graphics And Spatial Analysis Publication" Modern Geography 358195 International Advanced Study Symposium On Topclogical Data Structures For Geographic. Information Systems Massachusetts (1st) (1977) 375957 "U:(B2893)p1,N77, L8.3" CC 695408 695408 0 0 0 0 RTL RTL 2022-09-27 V1 0 "U:(B2893)p1,N77 L8.3" RT00647420 V4 2022-09-27 00:00:00 2022-09-27 ref