@article{PHSC_2004__8_2_125_0,
     author = {Bradfield, J. C.},
     title = {On independence-friendly fixpoint logics},
     journal = {Philosophia Scientiae},
     pages = {125--144},
     publisher = {\'Editions Kim\'e},
     volume = {8},
     number = {2},
     year = {2004},
     language = {en},
     url = {http://www.numdam.org/item/PHSC_2004__8_2_125_0/}
}