On the Commensurability Class of the Rational Modular Group
1970 ◽
Vol s2-2
(1)
◽
pp. 67-72
◽
1968 ◽
Vol 74
(1)
◽
pp. 115-119
◽
1998 ◽
Vol 26
(5)
◽
pp. 1409-1417
◽
Keyword(s):
1972 ◽
Vol s3-24
(3)
◽
pp. 449-469
◽