1. J.P. Buhler, R.E. Crandall, R.W. Sompolski, Irregular primes to one million, Math. Comp., 59 (1992), 717-722.
2. S. Jakubec, On divisibility of class number of real abelian fields of prime conductor, Abh. Math. Sem. Univ. Hamburg, 63 (1993), 67-86.
3. S. Jakubec, Congruence of Ankeny-Artin-Chowla type for cyclic fields of prime degree l, Math. Proc. Camb. Phil. Soc., 119 (1996), 17.
4. S. Jakubec, Congruence of Ankeny-Artin-Chowla type modulo p^2 for cyclic fields of prime degree l, Acta Arithmetica, LXXIV.4 (1996), 293-310.
5. S. Jakubec, Note on the congruence of Ankeny-Artin-Chowla type modulo p^2, Acta Arithmetica, LXXXV.4 (1998), 377-388.
6. E. Lehmer, Connection between Gaussian periods and cyclic units, Math. Comp., 50 (1988), 535-541.
7. W. Narkiewicz, Elementary and Analytic Theory of Algebraic Numbers, 2nd edition, Springer-Verlag (1990).
8. R. Schoof, L.C. Washington, Quintic polynomials and real cyclotomic fields with large class number, Math. Comp., 50 (1988), 543-556.
9. L.C. Washington, Introduction to Cyclotomic Fields, 2nd edition, Springer-Verlag (1997).
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