@article{10_4064_am_3_1_90_99,
     author = {J. Perkal},
     title = {Zastosowania matematyki do rolnictwa w \'srodowisku wroc{\l}awskim},
     journal = {Applicationes Mathematicae},
     pages = {90--99},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1958},
     doi = {10.4064/am-3-1-90-99},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-3-1-90-99/}
}