@article{10_4064_cm_38_1_153_164,
     author = {B. Rokowska},
     title = {Non-isomorphic {Steiner} triples with subsystems},
     journal = {Colloquium Mathematicum},
     pages = {153--164},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {1977},
     doi = {10.4064/cm-38-1-153-164},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-38-1-153-164/}
}