1. Standard Guidelines for the Collection and Depiction of Existing Subsurface Utility Data (CI/ASCE 38–02) (Standard No. 038-02);American Society of Civil Engineers,2002
2. Subsurface utility engineering: Upgrading the quality of utility information;Anspach,1995
3. Subsurface Utility Engineering: Utility Detection Methods and Applications;Anspach,1996
4. Natural and man-made terrestrial electromagnetic noise: An outlook;Bianchi;Annals of Geophysics,2007
5. Impact of geophysical array technologies on subsurface utility engineering quality levels;Birken,2009