@article{10_4064_sm_97_2_143_149,
     author = {S. Bernau and C. Huijsmans},
     title = {On the positivity of the unit element in a normed lattice ordered algebra},
     journal = {Studia Mathematica},
     pages = {143--149},
     publisher = {mathdoc},
     volume = {97},
     number = {2},
     year = {1990},
     doi = {10.4064/sm-97-2-143-149},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-97-2-143-149/}
}