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Ultraviolet absorption spectra of some sterically hindered p,p′-dimethoxystilbenesW. H. Laarhoven; R. J. F. Nivard; E. Havinga · 1960
Syntheses, infrared spectra and molecular refractions of some sterically hindered p,p′-dimethoxystilbenes: The influence of non-planarity in styrene and stilbene derivatives IVW. H. Laarhoven; R. J. F. Nivard; E. Havinga · 1961