2. kapitola. Dokonalé a spriatelené čísla
Dokonalé a spriatelené čísla, GDML_Books, (1969), p. 18-32 / Harvested from
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@inbook{403669,
     title = {2. kapitola. Dokonal\'e a spriatelen\'e \v c\'\i sla},
     booktitle = {Dokonal\'e a spriatelen\'e \v c\'\i sla},
     series = {GDML\_Books},
     publisher = {Mlad\'a fronta},
     address = {Praha},
     year = {1969},
     pages = {18-32},
     language = {sk},
     url = {http://dml.mathdoc.fr/item/403669}
}

 (éd.). 2. kapitola. Dokonalé a spriatelené čísla, dans Dokonalé a spriatelené čísla, GDML_Books,  (1969), pp. 18-32. http://gdmltest.u-ga.fr/item/403669/