1-6 of 6 Books

Models and ultraproducts
By John L. Bell,A. B. Slomson
"Ultra"-techniques in Banach space theory
"Ultra"-techniques in Banach space theory
By Brailey Sims

The use of ultraproducts in commutative algebra
By Hans Schoutens

Three-space problems in Banach space theory
By Jesús M. F. Castillo

Henkin-Keisler Models {Mathematics and Its Applications (Kluwer Academic Publishers) ; V. 392}
By George Weaver