@article{10_21136_CMJ_1974_101214,
     author = {Machala, Franti\v{s}ek},
     title = {Projektive {Abbildung} von {Moduln}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {26--39},
     year = {1974},
     volume = {24},
     number = {1},
     doi = {10.21136/CMJ.1974.101214},
     mrnumber = {0399176},
     zbl = {0308.50012},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1974.101214/}
}