%0 Journal Article %A Kyle Pula %T Products of all elements in a loop and a framework for non-associative analogues of the Hall-Paige conjecture. %J The electronic journal of combinatorics %D 2009 %V 16 %N 1 %U http://geodesic.mathdoc.fr/articles/10.37236/146/ %R 10.37236/146 %F 10_37236_146