@article{01669813,
title = {Some examples of spherical orbit spaces with cohomogeneity 2.},
journal = {Divulgaciones Matem\'aticas},
volume = {9},
year = {2001},
pages = {1-23},
zbl = {0986.57027},
language = {en},
url = {http://dml.mathdoc.fr/item/01669813}
}
McGowan, Jill; Searle, Catherine. Some examples of spherical orbit spaces with cohomogeneity 2.. Divulgaciones Matemáticas, Tome 9 (2001) pp. 1-23. http://gdmltest.u-ga.fr/item/01669813/