1. New phenomenon in narrow germanium pn junction;Esaki;Phys. Rev.,1958
2. Behaviour of non-metallic crystals in strong electric fields;Keldysh;Soviet J. Exptl. Theor. Phys.,1958
3. Observation of direct tunnelling in germanium;Morgan;Phys. Rev. Lett.,1959
4. Direct observation of phonons during tunnelling in narrow junction diodes;Holonyak;Phys. Rev. Lett.,1959
5. Basic theory of tunnel diodes;Conwell;Sylvania Tech.,1959