@article{JTNB_2005__17_1_217_0,
     author = {M\"uller, Wolfgang},
     title = {Systems of quadratic diophantine inequalities},
     journal = {Journal de th\'eorie des nombres de Bordeaux},
     pages = {217--236},
     publisher = {Universit\'e Bordeaux 1},
     volume = {17},
     number = {1},
     year = {2005},
     doi = {10.5802/jtnb.488},
     zbl = {1082.11020},
     mrnumber = {2152222},
     language = {en},
     url = {http://archive.numdam.org/articles/10.5802/jtnb.488/}
}