A Semi-Empirical Theory of the Electronic Spectra and Electronic Structure of Complex Unsaturated Molecules. II

Pariser, Rudolph; Parr, Robert G. . (1953). A Semi-Empirical Theory of the Electronic Spectra and Electronic Structure of Complex Unsaturated Molecules. II. The Journal of Chemical Physics, 21(5), 767–. doi:10.1063/1.1699030

An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research