@article{MAN_1981__256_163532,
     author = {Karl H. Hofmann and Arunava Mukherjea},
     title = {Concentration {Functions} and a {Class} of {Non-Compact} {Groups.}},
     journal = {Mathematische Annalen},
     pages = {535--548},
     year = {1981},
     volume = {256},
     zbl = {0471.60015},
     url = {http://geodesic.mathdoc.fr/item/MAN_1981__256_163532/}
}