@article{10_21136_MB_1996_125940, author = {Maliszewski, Aleksander}, title = {On theorems of {Pu} & {Pu} and {Grande}}, journal = {Mathematica Bohemica}, pages = {83--87}, publisher = {mathdoc}, volume = {121}, number = {1}, year = {1996}, doi = {10.21136/MB.1996.125940}, mrnumber = {1388179}, zbl = {0863.26005}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.1996.125940/} }