4Margaretha Scott,Roussos Dimitrakopoulos.Quantitative Analysis of Mineral Resources for Strategic Planning: Implications for Australian Geological Surveys[J]. Natural Resources Research . 2001 (3)
5Bernknopf R L,Brookshire D S,Soller D R,et al.Societal value ofgeological mape. U.S.Geological Survey CircularIV . 1993