@misc{RCM_2010_44_2_a2,
     title = {On {Middle} {Universal} {Weak} and {Cross} {Inverse} {Property} {Loops} with {Equal} {Length} of {Inverse} {Cycles}},
     journal = {Revista colombiana de matematicas},
     pages = {79--89},
     publisher = {mathdoc},
     volume = {44},
     number = {2},
     year = {2010},
     url = {http://geodesic.mathdoc.fr/item/RCM_2010_44_2_a2/}
}