[1] H. Cohen: 
A course in computational algebraic number theory. Graduate Texts in Mathematics 138, Springer Verlag 1995. 
MR 1228206[2] H. Cohen, H. W. Lenstra: 
Heuristics on class groups of number fields. Number Theory Noordwijkerhout 1983, Springer Lecture Notes 1068, Springer Verlag 1984. 
MR 0756082[3] H. Cohen, J. Martinet: 
Etude heuristique des groupes de classes des corps de nombres. J. Reine Angew. Math. 404 (1990), 39-76. 
MR 1037430 | 
Zbl 0699.12016[6] 
		
HASH(0x2f8ec30). Electronic mail message from H. Lenstra, June 3rd, 1998. 
Zbl 1170.01321