@article{ASNSP_2004_5_3_1_39_0,
     author = {Heinzner, Peter and Sch\"utzdeller, Patrick},
     title = {The extended future tube conjecture for {SO(1,} ${\it {n}}$)},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {39--52},
     publisher = {Scuola Normale Superiore, Pisa},
     volume = {Ser. 5, 3},
     number = {1},
     year = {2004},
     mrnumber = {2064966},
     zbl = {1170.32300},
     language = {en},
     url = {http://archive.numdam.org/item/ASNSP_2004_5_3_1_39_0/}
}