@article{10_4153_CMB_1971_030_6,
     author = {Haruki, Hiroshi},
     title = {On a {Relation} between the {{\textquotedblleft}Square{\textquotedblright}} {Functional} {Equation} {And} {The} {{\textquotedblleft}Square{\textquotedblright}} {Mean-Value} {Property}},
     journal = {Canadian mathematical bulletin},
     pages = {161--165},
     year = {1971},
     volume = {14},
     number = {2},
     doi = {10.4153/CMB-1971-030-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1971-030-6/}
}