@article{10_21136_CMJ_1964_100604,
     author = {V\'yborn\'y, Rudolf},
     title = {\"Uber das erweiterte {Maximumprinzip}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {116--120},
     year = {1964},
     volume = {14},
     number = {1},
     doi = {10.21136/CMJ.1964.100604},
     mrnumber = {0173861},
     zbl = {0145.36801},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1964.100604/}
}