On group-divisible designs with block size four and group-type 6um1
2004 ◽
Vol 279
(1-3)
◽
pp. 247-265
◽
2002 ◽
Vol 98
(2)
◽
pp. 357-376
◽
2010 ◽
Vol 310
(17-18)
◽
pp. 2258-2270
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2004 ◽
Vol 285
(1-3)
◽
pp. 97-120
◽
2005 ◽
Vol 34
(1)
◽
pp. 117-126
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2013 ◽
Vol 74
(1)
◽
pp. 243-282
◽
2000 ◽
Vol 8
(5)
◽
pp. 363-386
◽
2006 ◽
Vol 306
(10-11)
◽
pp. 939-947
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1999 ◽
Vol 195
(1-3)
◽
pp. 15-25
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