Notes on P. Kusch, H.M. Foley: . The magnetic moment of the electron, Phys. Rev. 74, 250-263 (1948).

References on ferromagnetism.

Notes and calculations on low temperature (spin waves).

Notes on "Fierz' Seminar report, on Onsager", 13 January 1947.

Notes and calculations on differential equations.

Notes on "Born and Green: Kinetic basis of thermodynamics

Literature references.

Notes.