https://jnfa.mathres.org/archives/1868 2019-03-29T14:11:34+00:00 monthly 0.2 https://jnfa.mathres.org/archives/1864 2019-03-24T07:54:50+00:00 monthly 0.2 https://jnfa.mathres.org/archives/1860 2019-03-23T02:06:57+00:00 monthly 0.2 https://jnfa.mathres.org/archives/1855 2019-03-21T12:07:52+00:00 monthly 0.2 https://jnfa.mathres.org/archives/1852 2019-03-31T02:15:02+00:00 monthly 0.2 https://jnfa.mathres.org/archives/1849 2019-03-14T13:25:13+00:00 monthly 0.2 https://jnfa.mathres.org/archives/1845 2019-03-05T04:14:52+00:00 monthly 0.2