@article{10_21136_MB_2004_134049,
     author = {Zelinka, Bohdan},
     title = {Signed 2-domination in caterpillars},
     journal = {Mathematica Bohemica},
     pages = {393--398},
     publisher = {mathdoc},
     volume = {129},
     number = {4},
     year = {2004},
     doi = {10.21136/MB.2004.134049},
     mrnumber = {2102612},
     zbl = {1080.05525},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2004.134049/}
}