@article{10_4153_CMB_1963_023_8,
     author = {McKiernan, M.A. and R\'enyi, A.},
     title = {Variational {Aspects} of the {Abel} and {Schroder} {Functional} {Equations}},
     journal = {Canadian mathematical bulletin},
     pages = {257--265},
     year = {1963},
     volume = {6},
     number = {2},
     doi = {10.4153/CMB-1963-023-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1963-023-8/}
}