@article{JTNB_1991__3_1_73_0,
     author = {Burns, D.},
     title = {On the {Galois} structure of the square root of the codifferent},
     journal = {S\'eminaire de th\'eorie des nombres de Bordeaux},
     pages = {73--92},
     publisher = {Universit\'e Bordeaux I},
     volume = {Ser. 2, 3},
     number = {1},
     year = {1991},
     mrnumber = {1116102},
     zbl = {0727.11047},
     language = {en},
     url = {http://www.numdam.org/item/JTNB_1991__3_1_73_0/}
}