Media type: E-Article Title: Estimating the mean of data sets with nondetectable values Contributor: Travis, Curtis C.; Land, Miriam L. imprint: American Chemical Society (ACS), 1990 Published in: Environmental Science & Technology, 24 (1990) 7, Seite 961-962 Language: English DOI: 10.1021/es00077a003 ISSN: 0013-936X; 1520-5851 Origination: Footnote: