@article{AIHPA_1985__43_3_349_0,
     author = {Gutkin, D.},
     title = {Vari\'et\'es bi-structur\'ees et op\'erateurs de r\'ecursion},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {349--357},
     publisher = {Gauthier-Villars},
     volume = {43},
     number = {3},
     year = {1985},
     mrnumber = {824844},
     zbl = {0587.58015},
     language = {fr},
     url = {http://archive.numdam.org/item/AIHPA_1985__43_3_349_0/}
}