@article{DMGAA_2004_24_2_a0,
     author = {Sokhatsky, Fedir},
     title = {Commutation of operations and its relationship with {Menger} and {Mann} superpositions},
     journal = {Discussiones Mathematicae. General Algebra and Applications},
     pages = {153--176},
     publisher = {mathdoc},
     volume = {24},
     number = {2},
     year = {2004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGAA_2004_24_2_a0/}
}