@article{10_1017_S0017089500009411,
     author = {Koubek, V. and Sichler, J.},
     title = {Categorical universality of regular double p-algebras},
     journal = {Glasgow mathematical journal},
     pages = {329--340},
     year = {1990},
     volume = {32},
     number = {3},
     doi = {10.1017/S0017089500009411},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500009411/}
}