@article{CMH_1986__61_140038,
     author = {Urs W\"urgler},
     title = {Commutative ring-spectra of characteristic 2.},
     journal = {Commentarii mathematici Helvetici},
     pages = {33--45},
     publisher = {mathdoc},
     volume = {61},
     year = {1986},
     zbl = {0622.55003},
     url = {http://geodesic.mathdoc.fr/item/CMH_1986__61_140038/}
}