%0 Journal Article %A Mark Pollicott %T A note on the shrinking sector problem for surfaces of variable negative curvature %J Informatics and Automation %D 2017 %P 281-291 %V 297 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_2017_297_a14/ %G ru %F TRSPY_2017_297_a14