@article{DMGAA_2000_20_2_a2,
     author = {Denecke, Klaus and Mahdavi, Kazem},
     title = {The order of normalform hypersubstitutions of type (2)},
     journal = {Discussiones Mathematicae. General Algebra and Applications},
     pages = {183--192},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGAA_2000_20_2_a2/}
}