@article{SM_2005_196_3_a1,
     author = {O. N. German},
     title = {Sails and norm minima of lattices},
     journal = {Sbornik. Mathematics},
     pages = {337--365},
     year = {2005},
     volume = {196},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2005_196_3_a1/}
}