@phdthesis{oai:tsukuba.repo.nii.ac.jp:00008456, author = {Okubo, Noriaki}, month = {}, note = {Since the discovery of nuclear quadrupole resonance (NQR) by Dehmelt and Kruger in 1950, NQR spectroscopy has been developed as a powerful means to study electron distribution in the crystal. NQR is based on yhe following principle. When a ..., 1980}, school = {筑波大学, University of Tsukuba}, title = {93Nb and 35Cl nuclear quadrupole resonance study in niobium pentachloride and related compounds}, year = {1980} }