6. Mappings of sets
Foundations of the Theory of Groupoids and Groups, GDML_Books, (1974), p. 46-56 / Harvested from
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@inbook{401545,
     title = {6. Mappings of sets},
     booktitle = {Foundations of the Theory of Groupoids and Groups},
     series = {GDML\_Books},
     publisher = {VEB Deutscher Verlag der Wissenschaften},
     address = {Berlin},
     year = {1974},
     pages = {46-56},
     url = {http://dml.mathdoc.fr/item/401545}
}

 (éd.). 6. Mappings of sets, dans Foundations of the Theory of Groupoids and Groups, GDML_Books,  (1974), pp. 46-56. http://gdmltest.u-ga.fr/item/401545/