Performance of rearrangeable nonblocking 4×4 switch matrices on LiNbO3. - D. Hoffman; H. Heidrich; H. Ahlers; M. K. Fluge (IEEE J. Sel. Areas Commun., 1988)

Interlaboratory comparison of high direct voltage resistor dividers. - Yi Li; Juris Rungis; Kyu-Tae Kim; Yong Myung Cho; Terry R. McComb; John G. Dunn; Len Van Der Zwan; D. Hoffman (IEEE Trans. Instrum. Meas., 1999)