Moellering, H., & Hogan, R. (1997). Spatial database transfer standards 2: Characteristics for assessing standards and full descriptions of the national and international standards in the world : the ICA Commission on Standards for the Transfer of Spatial Data, December, 1996. Oxford: Elsevier Science Ltd..

Moellering, Harold, and Richard Hogan. Spatial Database Transfer Standards 2: Characteristics for Assessing Standards and Full Descriptions of the National and International Standards in the World : The ICA Commission On Standards for the Transfer of Spatial Data, December, 1996. Oxford: Elsevier Science Ltd., 1997.

Moellering, Harold, and Richard Hogan. Spatial Database Transfer Standards 2: Characteristics for Assessing Standards and Full Descriptions of the National and International Standards in the World : The ICA Commission On Standards for the Transfer of Spatial Data, December, 1996. Oxford: Elsevier Science Ltd., 1997.