@article{10_14708_dm_v14i01_6818,
     author = {Zbigniew Semadeni},
     title = {Grafy strza{\l}kowe i drzewa jako reprezentacje ikoniczno-enaktywne},
     journal = {Didactica Mathematicae},
     pages = { 115--120},
     publisher = {mathdoc},
     volume = {14},
     number = {01},
     year = {1992},
     doi = {10.14708/dm.v14i01.6818},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/dm.v14i01.6818/}
}