Fisher, T. C., Chung, A., & Helliwell, J. F. (1986). A translog model of aggregate production and variable factor utilization. Department of Economics, University of British Columbia.

Fisher, Timothy C.G, Alan Chung, and John F. Helliwell. A Translog Model of Aggregate Production and Variable Factor Utilization. Vancouver, Canada: Department of Economics, University of British Columbia, 1986.

Fisher, Timothy C.G, et al. A Translog Model of Aggregate Production and Variable Factor Utilization. Department of Economics, University of British Columbia, 1986.