1. Behavior of theta series of degree N under modular substitutions;Andrianov;Math. USSR-Izv.,1975
2. Behavior of theta series of genus n of indefinite quadratic forms under modular substitutions;Andrianov;Proc. Steklov Inst. Math.,1980
3. Introduction to the Theory of Algebraic Numbers and Functions;Eichler,1966
4. On theta functions of real algebraic fields;Eichler;Acta Arith.,1977
5. On theta functions associated to indefinite quadratic forms;Friedberg;J. Number Theory,1986