OFFSET
-1,2
REFERENCES
J. A. Thas, Old and new results on spreads and ovoids of finite classical polar spaces, pp. 529-544 of A. Barlotti et al., eds., Combinatorics `90, North-Holland 1992.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jul 03 2003
STATUS
approved