@article{MASLO_2004_54_1_a1,
     author = {Gudder, Stan},
     title = {Tensor products of sequential effect algebras},
     journal = {Mathematica slovaca},
     pages = {1--11},
     year = {2004},
     volume = {54},
     number = {1},
     mrnumber = {2074025},
     zbl = {1086.03053},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_2004_54_1_a1/}
}