[seqfan] Changing References to Links

David Scambler dscambler at bmm.com
Mon Feb 14 05:51:32 CET 2011

What is the etiquette for changing a reference to a link when you 
notice that the article is on the web?

For example. In sequences A091869, A092107, A098747

Y. Sun, The statistic "number of udu's" in Dyck paths, 
Discrete Math., 237 (2004), 177-186.

is available at http://www.combinatorics.cn/publications/papers/2004/udu.pdf


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