@article{10_4153_CMB_1985_043_0,
     author = {G\'erardin, Paul and Li, Wen-Ch'ing Winnie},
     title = {A {Functional} {Equation} for {Degree} two {Local} {Factors}},
     journal = {Canadian mathematical bulletin},
     pages = {355--371},
     year = {1985},
     volume = {28},
     number = {3},
     doi = {10.4153/CMB-1985-043-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1985-043-0/}
}