1. R. Hagedorn, Thermodynamics of distinguishable particles: A key to high-energy strong interactions?, see Chapter 19, and Commentary by J. Rafelski Chapter 18, in this volume.
2. R. Hagedorn, Statistical thermodynamics of strong interactions at high-energies. Nuovo Cimento Suppl. 3, 147 (1965)
3. R. Hagedorn, J. Ranft, Statistical thermodynamics of strong interactions at high-energies, 2. Momentum spectra of particles produced in pp collisions. Nuovo Cimento Suppl. 6, 169 (1968)
4. R. Hagedorn, Statistical thermodynamics of strong interactions at high energies, 3. Heavy-pair (quark) production rates. Nuovo Cimento Suppl. 6, 311 (1968)
5. R. Hagedorn, Hadronic matter near the boiling point. Nuovo Cimento A 56, 1027 (1968)