@article{ASNSP_2001_4_30_3-4_515_0,
     author = {Stratmann, Bernd},
     title = {Complexification of proper hamiltonian $G$-spaces},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {515--534},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 30},
     number = {3-4},
     year = {2001},
     mrnumber = {1896076},
     zbl = {1072.32006},
     language = {en},
     url = {http://archive.numdam.org/item/ASNSP_2001_4_30_3-4_515_0/}
}