@article{JOLT_2008_18_2_a3,
     author = {W. Bertram},
     title = {Homotopes and {Conformal} {Deformations} of {Symmetric} {Spaces}},
     journal = {Journal of Lie Theory},
     pages = {301--333},
     year = {2008},
     volume = {18},
     number = {2},
     zbl = {1164.17021},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2008_18_2_a3/}
}