@article{PHSC_1996__1_2_121_0,
     author = {Ketchum, Richard},
     title = {Peirce and naturalism},
     journal = {Philosophia Scientiae},
     pages = {121--132},
     publisher = {\'Editions Kim\'e},
     volume = {1},
     number = {2},
     year = {1996},
     language = {en},
     url = {http://archive.numdam.org/item/PHSC_1996__1_2_121_0/}
}