@article{10_21136_MB_2007_133995,
     author = {Ercan, Z.},
     title = {A remark on supra-additive and supra-multiplicative operators on $C(X)$},
     journal = {Mathematica Bohemica},
     pages = {55--58},
     publisher = {mathdoc},
     volume = {132},
     number = {1},
     year = {2007},
     doi = {10.21136/MB.2007.133995},
     mrnumber = {2311753},
     zbl = {1174.46326},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2007.133995/}
}