00564nam a2200181Ia 4500082002400000100001700024245006900041260003600110300002100146490004900167500000500216690000600221700000500227952010600232964001700338921001000355999001700365  a519.501843bB989.CM  aButz, Lothar  aConnectivity in multi-factor designs; a combinatorial approachb  aBerlinbHeldermann Verlagc1982  avii, 190p. Index  aResearch and education in Mathematicsv v. 3  a  a   a  00104070aISIbISId1998-10-06l0o519.501843 B989.CMpDP18607r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a15510  c15510d15510