@article{10_37236_1479,
     author = {H. Kharaghani},
     title = {On the twin designs with the {Ionin-type} parameters},
     journal = {The electronic journal of combinatorics},
     year = {2000},
     volume = {7},
     doi = {10.37236/1479},
     zbl = {0944.05013},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1479/}
}