Thilo Weber
QUASI-PARTICLE AND COLLECTIVE EXCITATIONS.
Douglas J. Scalapino
STUDY OF THE NUMBER OF PARTICLES IN THE QUASI-PARTICLE APPROXIMATION
J. Högaasen-Feldman
MANY PARTICLE PHENOMENA.
D. Horn
PARTICLE-HOLE REPRESENTATION
THEORY OF THE MANY-PARTICLE SYSTEMS.
I. I. Ivanchik
THE ONE AND TWO PARTICLE PROBLEMS
Léopold Infeld, Jerzy F Plebanski