@article{AM2_1977__16_136674,
     author = {M.A. McKiernan},
     title = {Equations of the form {H(x...y)} = ...fi(x)gi(y).},
     journal = {Aequationes mathematicae},
     pages = {51--58},
     publisher = {mathdoc},
     volume = {16},
     year = {1977},
     zbl = {0392.39004},
     url = {http://geodesic.mathdoc.fr/item/AM2_1977__16_136674/}
}