The Algebraic nature of the elementary theory of PRC fields. Moshe Jarden (1988) Manuscripta mathematica
The Elementary Theory of Algebraic Fields of Finite Corank. Moshe Jarden, Ursel Kiehne (1975) Inventiones mathematicae
The prime spectrum of an infinite product of copies of Z Ronnie Levy, Philippe Loustaunau, Jay Shapiro (1991) Fundamenta Mathematicae