@article{COMIM_2006__14_1_a1,
     author = {Ciema{\l}a, Marzena},
     title = {Natural homomorphisms of {Witt} rings of orders in algebraic number fields. {II}},
     journal = {Communications in Mathematics},
     pages = {13--16},
     publisher = {mathdoc},
     volume = {14},
     number = {1},
     year = {2006},
     mrnumber = {2298907},
     zbl = {1127.11320},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/COMIM_2006__14_1_a1/}
}