Measurement of simultaneous scale and mix changes in inputs and outputs using DEA facets and RTS. - Hirofumi Amatatsu; Tohru Ueda (Eur. J. Oper. Res., 2012)

Efficiency and returns-to-scale of local governments. - Hirofumi Amatatsu; Tohru Ueda; Y. Amatatsu (J. Oper. Res. Soc., 2012)