@article{10_1017_S0017089500009745,
     author = {Sequeira, M.},
     title = {Double {MSn-algebras} and double {Kn.m-algebras}},
     journal = {Glasgow mathematical journal},
     pages = {189--201},
     year = {1993},
     volume = {35},
     number = {2},
     doi = {10.1017/S0017089500009745},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500009745/}
}