@article{MZ_1983__183_173316,
     author = {Martin L. Brown},
     title = {Artin {Approximation} and {Formal} {Fibres} of {Local} {Rings.}},
     journal = {Mathematische Zeitschrift},
     pages = {221--228},
     publisher = {mathdoc},
     volume = {183},
     year = {1983},
     zbl = {0496.14003},
     url = {http://geodesic.mathdoc.fr/item/MZ_1983__183_173316/}
}