@article{10_1007_s10587_011_0052_8,
     author = {Chil, Elmiloud},
     title = {Order bounded orthosymmetric bilinear operator},
     journal = {Czechoslovak Mathematical Journal},
     pages = {873--880},
     publisher = {mathdoc},
     volume = {61},
     number = {4},
     year = {2011},
     doi = {10.1007/s10587-011-0052-8},
     mrnumber = {2886242},
     zbl = {1249.06048},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.1007/s10587-011-0052-8/}
}