1. Rotational triple systems;Cho;Ars Combin.,1982
2. Cyclic Neofields and Combinatorial Designs;Hsu,1980
3. On 1-rotational Sλ(2, 3, υ) designs;Kuriki;Discrete Math,1983
4. Two-fold triple systems without repeated blocks;Stinson;Discrete Math.,1983
5. Some designs with block size three;Street,1980