@article{10_4064_aa108_3_6,
     author = {Jaehyun Ahn and Hwanyup Jung},
     title = {Greither's maximal independent system of
 units in global function fields},
     journal = {Acta Arithmetica},
     pages = {267--274},
     publisher = {mathdoc},
     volume = {108},
     number = {3},
     year = {2003},
     doi = {10.4064/aa108-3-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa108-3-6/}
}