BatchMref usage

http://www.ams.org/batchmref?qdata=xmldocument&api=mref
  1. api is optional
  2. qdata is required; refer to the document below

The following is an example 

<?xml version = "1.0" encoding = "UTF-8"?>
<mref_batch>
 <mref_item outtype={amsref|bibtex|html|tex">
  <inref intype="optional">string</inref>
  <outref>string</outref>
  <myid>1234</myid>
  <mrid></mrid>
  <matches>(0,1)</matches>
 </mref_item>
</mref_batch>
  1. The result of the request is the same document with the fields outref and matches filled in.
  2. You are limited to 100 items.