@article{AIHPA_1968__8_1_81_0,
     author = {Droz-Vincent, Philippe},
     title = {Structures subordonn\'ees \`a un op\'erateur complexe},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {81--91},
     publisher = {Gauthier-Villars},
     volume = {8},
     number = {1},
     year = {1968},
     zbl = {0173.30703},
     language = {fr},
     url = {http://archive.numdam.org/item/AIHPA_1968__8_1_81_0/}
}