00409nam a2200121Ia 4500008004100000020001500041082001800056100002100074245007700095260003800172300002900210490004800239260310b        |||||||| |||| 00| 0 eng d  a3110114801  a516bSa186.CP  aSalzmann, Helmut  aCompact projective planesb: with an introduction to octonion geometry /  aBerlin:bWalter de Gruyter,c1995  axiii, 688p. Bibl. Index.  aDe Gruyter expositions in Mathematics v 21