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These five papers form the basis for our belief that massive neutral particles (WIMPS) or axions are the main component of dark matter. Please read each paper with particular attention to the Zwicky paper.
Fritz's Zwicky's 1933 paper Zwicky.pdf
Rubin and Ford paper on the measurement of the rotation curve of Andromeda 1970ApJ___159__379R.pdf
Numerical study of galactic dynamics 1973ApJ___186__467O.pdf
Cosmological Deuterium Abundance and the Baryon Density of the Universe 9603070v2.pdf
Limits on cold dark matter from the Gotthard Germanium Experiment GotthardDM.pdf
Here are some other interesting papers
A SLAC Beamline about Fritz Zwicky 31-1-mauermaurer.pdf
Physics Today article by Vera Rubin 1970ApJ___159__379R.pdf
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