@article{MAN_1970__190_162114,
     author = {R.M. BROOKS},
     title = {On {Arens'} },
     journal = {Mathematische Annalen},
     pages = {329--337},
     publisher = {mathdoc},
     volume = {190},
     year = {1970},
     zbl = {0197.39803},
     url = {http://geodesic.mathdoc.fr/item/MAN_1970__190_162114/}
}