@article{SIGMA_2015_11_a81,
     author = {Ludwik D\k{a}browski and Tom Hadfield and Piotr M. Hajac},
     title = {Equivariant {Join} and {Fusion} of {Noncommutative} {Algebras}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2015},
     volume = {11},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2015_11_a81/}
}