"The developments of UF process-based “compact” MOSFET models have been reviewed, and exemplary new physical insights on SOI devices attained with the models have been overviewed. Indeed, the UF models have been, and are effective research/education tools. The “ugly duckling” has prevailed, just like in the fairy tale (illustrated in Fig. 10) !" J. G. Fossum
 H. C. Anderson, “The Ugly Duckling,” New Fairy Tales. C. A. Reitzel, Copenhagen, Denmark, Nov. 1843.
J. Fossum, “UF ‘ Compact ’ Models : A Historical Perspective,” Nanotech, vol. 2, pp. 714 - 719, 2011.