@article{10_4064_am_6_3_235_248,
     author = {W. Rudzki},
     title = {Szacowanie w{\l}a\'sciwo\'sci \'srednich produkt\'ow bezkszta{\l}tnych},
     journal = {Applicationes Mathematicae},
     pages = {235--248},
     publisher = {mathdoc},
     volume = {6},
     number = {3},
     year = {1962},
     doi = {10.4064/am-6-3-235-248},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-6-3-235-248/}
}