@article{DMPS_2014_34_1-2_a5,
     author = {Fernandes, C\'elia and Ramos, Paulo and Mexia, Jo\~ao},
     title = {Algebraic structure for the crossing of balanced and stair nested designs},
     journal = {Discussiones Mathematicae. Probability and Statistics},
     pages = {71--88},
     publisher = {mathdoc},
     volume = {34},
     number = {1-2},
     year = {2014},
     zbl = {1326.62160},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMPS_2014_34_1-2_a5/}
}