@article{10_4064_am_11_3_235_264,
     author = {L. Zubrzycka},
     title = {O wyznaczaniu system\'ow stenograficznych},
     journal = {Applicationes Mathematicae},
     pages = {235--264},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {1969},
     doi = {10.4064/am-11-3-235-264},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-11-3-235-264/}
}