@article{ASNSP_1998_4_26_3_595_0,
     author = {Backlund, Ulf and F\"allstr\"om, Anders},
     title = {Counterexamples to the {Gleason} problem},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {595--603},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 26},
     number = {3},
     year = {1998},
     mrnumber = {1635710},
     zbl = {0933.32002},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1998_4_26_3_595_0/}
}