2 1 10 Frank Werner Primary Author Yuri N. Sotskov Additional Author mixed material 9780203401385 London Routledge 2006 Mathematics of Economics and Business cover_mathematics-of-economics-and-business-20240503134350.jpg Frank Werner Primary Author Yuri N. Sotskov Primary Author mixed material 9780203401385 London Routledge 2006 Mathematics of Economics and Business