@article{SMJ2_2005_31_3_a1,
     author = {Gheribi-Aoulmi, Z. and Bousseboua, M.},
     title = {Recursive {Methods} for {Construction} of {Balanced} {N-ary} {Block} {Designs}},
     journal = {Serdica Mathematical Journal},
     pages = {189--200},
     publisher = {mathdoc},
     volume = {31},
     number = {3},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_2005_31_3_a1/}
}