@article{CM_1971__23_4_453_0,
     author = {Wynn, P.},
     title = {Upon the generalised inverse of a formal power series with vector valued coefficients},
     journal = {Compositio Mathematica},
     pages = {453--460},
     publisher = {Wolters-Noordhoff Publishing},
     volume = {23},
     number = {4},
     year = {1971},
     mrnumber = {306224},
     zbl = {0239.15003},
     language = {en},
     url = {http://www.numdam.org/item/CM_1971__23_4_453_0/}
}