5. Complementary (commuting) decompositions
Foundations of the Theory of Groupoids and Groups, GDML_Books, (1974), p. 41-46 / Harvested from
Access to full text
Full (PDF) 
@inbook{401544,
     title = {5. Complementary (commuting) decompositions},
     booktitle = {Foundations of the Theory of Groupoids and Groups},
     series = {GDML\_Books},
     publisher = {VEB Deutscher Verlag der Wissenschaften},
     address = {Berlin},
     year = {1974},
     pages = {41-46},
     url = {http://dml.mathdoc.fr/item/401544}
}

 (éd.). 5. Complementary (commuting) decompositions, dans Foundations of the Theory of Groupoids and Groups, GDML_Books,  (1974), pp. 41-46. http://gdmltest.u-ga.fr/item/401544/