References
- Dobson , J. E. 1995 . What's the next “final” frontier? . GIS World , 8 : 40 – 42 .
- USGS . Pacific Sea-Floor Mapping , 2004, Available at http://walrus.wr.usgs.gov/pacmaps/ (last accessed 1 June 2004)
- Wright , D. J. and Goodchild , M. F. 1997 . Data from the deep: Implications for GIS community . International J. Geographical Infor. Sci. , 11 ( 6 ) : 523 – 528 . [CROSSREF]