%0 Journal Article %A S. Singh %T Homotopy groups of arc complements in $S^n$ or Q %J Colloquium Mathematicum %D 1988 %P 291-298 %V 56 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-56-2-291-298/ %R 10.4064/cm-56-2-291-298 %G en %F 10_4064_cm_56_2_291_298