Úvod
Matematické hlavolamy a základy teorie grup, GDML_Books, (1988), p. 3-4 / Harvested from
Access to full text
Full (PDF) 
@inbook{404167,
     title = {\'Uvod},
     booktitle = {Matematick\'e hlavolamy a z\'aklady teorie grup},
     series = {GDML\_Books},
     publisher = {Mlad\'a fronta},
     address = {Praha},
     year = {1988},
     pages = {3-4},
     url = {http://dml.mathdoc.fr/item/404167}
}

 (éd.). Úvod, dans Matematické hlavolamy a základy teorie grup, GDML_Books,  (1988), pp. 3-4. http://gdmltest.u-ga.fr/item/404167/