1. Aigner, D. J., Lovell, C. A. K., & Schmidt, P. J. (1977). Formulation and estimation of stochastic frontier production function models. Journal of Econometrics, 6, 21–37. https://doi.org/10.1016/0304-4076(77)90052-5
2. Almanidis, P., Qian, J., & Sickles, R. C. (2014). Stochastic frontier models with bounded inefficiency. In R. C. Sickles & W. C. Horrace (Eds.), Econometric methods and applications (pp. 47–81). Springer Science & Business Media.
3. Battese, G. E., & Coelli, T. (1988). Prediction of firm-level technical efficiencies with a generalized frontier production function and panel data. Journal of Econometrics, 38, 387–399. https://doi.org/10.1016/0304-4076(88)90053-X
4. Battese, G. E., & Coelli, T. (1992). Frontier production functions, technical efficiency and panel data: With application to paddy farmers in India. The Journal of Productivity Analysis, 3, 153–169. https://doi.org/10.1007/BF00158774
5. Coelli, T.J. (1996). A guide to frontier version 4.1: A computer program for stochastic frontier production and cost function estimation. Working paper No. 7/96, Cen- tre for Efficiency and Productivity Analysis (CEPA), University of New England, Australia. Preprint at http://www.uq.edu.au/economics/cepa/frontier.php