For Lorna Wingís translation of Hans Aspergerís original paper, see:
Frith, U. (Ed.) (1991). Autism and Asperger syndrome. Cambridge, UK: Cambridge UniversityPress
Aspergerís Syndrome was virtually unknown in the west, while Leo Kannerís work on Autism was widely known. This is primarily due to the fact that Asperger was working in Austria in and around WWII, while his compatriot, Kanner, had emigrated to the United States.