Frank A. FeketeJack T. SpenceThomas Emery2014-09-172014-09-171983-12Appl. Environ. Microbiol. December 1983, Vol.46 No.6, pp.1297-1300http://hdl.handle.net/123456789/5793enSiderophores Produced by Nitrogen-Fixing Azotobacter vinelandii OP in Iron-Limited Continuous CultureArticle