Pillinger, William. "Paramagnetic susceptibility and adiabatic demagnetization of F-centers in KC 1 and of chromic and ferric acetylacetonate at temperatures below 4.2°K." Doctoral dissertation, Ohio State University, 1955. http://rave.ohiolink.edu/etdc/view?acc_num=osu1447426246Chicago Manual of Style (17th edition)