Electrons and nuclei meet at HERA – CERN Courier

The HERA collider at DESY, Hamburg, has been operating with proton and electron (or positron) beams since it was commissioned in 1991.

Superconductivity and the LHC: the early days – CERN Courier

HERA gets set to demonstrate its full potential – CERN Courier

Remembering the W discovery – CERN Courier

LHeC - Wikipedia

More to physics than meets the eye – CERN Courier

PDF) Electron Ion Collider: The Next QCD Frontier - Understanding

PDF) Alternative scenario for future colliders at CERN

Do pentaquarks really exist? – Physics World

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