@article{PMFA_2009_54_1_a4,
     author = {Daems, Jeanine},
     title = {Escher ako matematik. {Rozhovor} s {N.} {G.} de {Bruijnom} a {Hendrikom} {Lenstrom}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {33--40},
     year = {2009},
     volume = {54},
     number = {1},
     mrnumber = {2454668},
     language = {sk},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2009_54_1_a4/}
}