@article{SM_2017_208_6_a2,
     author = {Christopher Deninger and Young-Tak Oh},
     title = {The universal deformation of the {Witt} ring scheme},
     journal = {Sbornik. Mathematics},
     pages = {764--790},
     publisher = {mathdoc},
     volume = {208},
     number = {6},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2017_208_6_a2/}
}