%0 Journal Article %A Masahiko Ito %T A First Order $q$-Difference System for the $BC_1$-Type Jackson Integral and Its Applications %J Symmetry, integrability and geometry: methods and applications %D 2009 %V 5 %U http://geodesic.mathdoc.fr/item/SIGMA_2009_5_a40/ %G en %F SIGMA_2009_5_a40