1. Valuations and real places in the theory of formally real fields;Becker, Eberhard,1982
2. Characterization of fans and hereditarily Pythagorean fields;Bröcker, Ludwig;Math. Z.,1976
3. Unendliche algebraische Zahlkörper, über denen jede Gleichung auflösbar von beschränkter Stufe ist;Geyer, Wulf-Dieter;J. Number Theory,1969
4. Finite and infinite primes for rings and fields;Harrison, D. K.;Mem. Amer. Math. Soc.,1966
5. Infinite primes of fields and completions;Harrison, D. K.;Pacific J. Math.,1973