APA-ийн эшлэл(7 дахь хэвлэлт)

Fé, E., & Hofler, R. (2012). Count data stochastic frontier models, with an application to the patents-RandD relationship.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Fé, E., ба R. Hofler. Count Data Stochastic Frontier Models, with an Application to the Patents-RandD Relationship. 2012.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Fé, E., ба R. Hofler. Count Data Stochastic Frontier Models, with an Application to the Patents-RandD Relationship. 2012.