%0 Journal Article %A Klaus Metsch %T The chromatic number of two families of generalized Kneser graphs related to finite generalized quadrangles and finite projective 3-spaces %J The electronic journal of combinatorics %D 2021 %V 28 %N 3 %U http://geodesic.mathdoc.fr/articles/10.37236/10239/ %R 10.37236/10239 %F 10_37236_10239