@article{DMGAA_2009_29_2_a0,
     author = {Anantpinitwatna, Apinant and Poomsa-ard, Tiang},
     title = {Special m-hyperidentities in biregular leftmost graph varieties of type (2,0)},
     journal = {Discussiones Mathematicae. General Algebra and Applications},
     pages = {81--107},
     publisher = {mathdoc},
     volume = {29},
     number = {2},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGAA_2009_29_2_a0/}
}