[BCEMS] J. Buhler R. Crandall R. Ernvall T. Metsänkylä, and M. A. Shokrollahi: Irregular primes and cyclotomic invariants to eight million. to appear.
[C] P. Cikánek: 
Matrices of the Stickelberger ideals mod l for all primes up to 125,000. Archivum Mathematicum (Brno) 27 a (1991), 3-6. 
MR 1189635[S2] L. Skula: 
Special invariant subspaces of a vector space over Z/lZ. Archivum Mathematicum (Brno) 25 (1989), 35-46. 
MR 1189197 | 
Zbl 0737.11027[Wg] S. S. Wagstaff, Jr.: 
The irregular primes to 125,000. Math. Comp. 32 (1978), 583-591. 
MR 0491465