1. Cf., e.g. P Nozi�res (1964) Theory of interacting Fermi systems. Benjamin, New York, translated by D. Hone
2. Linderberg J (1964) Arkiv Fysik 22:323
3. Linderberg J, Bystrand FW (1964) Arkiv Fysik 26: 383
4. Linderberg J (1968) Magyar Fizikai Folyoirat XVI 5:1
5. Linderberg J, �hrn Y (1965) Proc Roy Soc (London) A285:445