@article{PHSC_2004__8_2_145_0,
     author = {Tulenheimo, Tero},
     title = {Sur les {\guillemotleft} op\'erateurs r\'etrogrades {\guillemotright}},
     journal = {Philosophia Scientiae},
     pages = {145--160},
     publisher = {\'Editions Kim\'e},
     volume = {8},
     number = {2},
     year = {2004},
     language = {fr},
     url = {http://archive.numdam.org/item/PHSC_2004__8_2_145_0/}
}