@article{CM_1969__21_3_233_0,
     author = {Fadell, A. G. and Magill, Jr., K. D.},
     title = {Automorphisms of semigroups of polynomials},
     journal = {Compositio Mathematica},
     pages = {233--239},
     publisher = {Wolters-Noordhoff Publishing},
     volume = {21},
     number = {3},
     year = {1969},
     mrnumber = {248253},
     zbl = {0183.30701},
     language = {en},
     url = {http://www.numdam.org/item/CM_1969__21_3_233_0/}
}