Fé, E., & Hofler, R. (2012). Count data stochastic frontier models, with an application to the patents-RandD relationship.
Lua i Stíl Chicago (17ú heag.)Fé, E., agus R. Hofler. Count Data Stochastic Frontier Models, with an Application to the Patents-RandD Relationship. 2012.
Lua MLA (9ú heag.)Fé, E., agus R. Hofler. Count Data Stochastic Frontier Models, with an Application to the Patents-RandD Relationship. 2012.
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