@article{CM_1977__35_3_269_0,
     author = {Gardner, B. J.},
     title = {Polynomial identities and radicals},
     journal = {Compositio Mathematica},
     pages = {269--279},
     publisher = {Noordhoff International Publishing},
     volume = {35},
     number = {3},
     year = {1977},
     mrnumber = {453798},
     zbl = {0328.16008},
     language = {en},
     url = {http://www.numdam.org/item/CM_1977__35_3_269_0/}
}