@article{10_4064_ap_2_1_56_63,
     author = {Stanis{\l}aw Knapowski},
     title = {On the greatest prime factors of certain products},
     journal = {Annales Polonici Mathematici},
     pages = {56--63},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {1955},
     doi = {10.4064/ap-2-1-56-63},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-2-1-56-63/}
}