%0 Journal Article %A Herbert Gross %A Hans A. Keller %T On the problem of classifying infinite chains in projective and orthogonal geometry %J Annales Fennici Mathematici %D 1983 %P 67-86 %V 8 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1983.0812/ %R 10.5186/aasfm.1983.0812 %G en %F AFM_1983_8_1_a3