Pokropp F Aggregation von produktions funktioner Klein Nataf-Aggregation ohne annaham uber differenzierbarkeit stetigkeit - Berlin Springer Verlag 1972 - vi, 107p. cm. - Lectures notes in economics and mathematical systems ed by M Beckmann and G Goos; 74 . Standard No.: 134,888 Source: Textual Subjects--Topical Terms: ECONOMICS Dewey Class. No.: X:(B28), 113L2