Berger, S., Verschoor, A. J., Eggen, T., & Moser, U..  (2017).  Efficiency of Targeted Multistage Calibration Designs under Practical Constraints: A Simulation Study. In IACAT 2017 Conference. presented at the 08/2017, Niigata, Japan: Niigata Seiryo University. Retrieved from https://drive.google.com/file/d/1ko2LuiARKqsjL_6aupO4Pj9zgk6p_xhd/view?usp=sharing