@article{AIHPA_1968__8_1_1_0,
     author = {Ingarden, Roman S.},
     title = {Notion de temp\'erature et pompage optique},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {1--23},
     publisher = {Gauthier-Villars},
     volume = {8},
     number = {1},
     year = {1968},
     language = {fr},
     url = {http://www.numdam.org/item/AIHPA_1968__8_1_1_0/}
}