@article{PDML_1968__5_2_1_0,
     author = {Berruyer, Jacques},
     title = {Op\'erateurs r\'eguliers spectraux et op\'erateurs r\'eguliers d\'ecomposables},
     journal = {Publications du D\'epartement de math\'ematiques (Lyon)},
     pages = {1--56},
     publisher = {Universit\'e Claude Bernard - Lyon 1},
     volume = {5},
     number = {2},
     year = {1968},
     mrnumber = {433256},
     zbl = {0184.35402},
     language = {fr},
     url = {http://www.numdam.org/item/PDML_1968__5_2_1_0/}
}