TY  - GEN
AU  - Bell,E T
TI  - Remark on the Number of Classes of Binary Quadratic Forms of a Given Negative Determinant
SN  - 0027-8424
PY  - 2006///0601
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1073/pnas.14.5.430
ER  -