@article{10_4064_cm_44_1_47_51,
     author = {G. J. Michaelides},
     title = {Mean with respect to a map},
     journal = {Colloquium Mathematicum},
     pages = {47--51},
     year = {1981},
     volume = {44},
     number = {1},
     doi = {10.4064/cm-44-1-47-51},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-44-1-47-51/}
}