@article{CM_1988__67_2_211_0,
     author = {Keating, Kevin},
     title = {Lifting endomorphisms of formal $A$-modules},
     journal = {Compositio Mathematica},
     pages = {211--239},
     publisher = {Kluwer Academic Publishers},
     volume = {67},
     number = {2},
     year = {1988},
     mrnumber = {951751},
     zbl = {0655.14017},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1988__67_2_211_0/}
}