diff --git a/lmfdb/elliptic_curves/templates/congruent_number_data.html b/lmfdb/elliptic_curves/templates/congruent_number_data.html
index 980c0d6254..8442566210 100644
--- a/lmfdb/elliptic_curves/templates/congruent_number_data.html
+++ b/lmfdb/elliptic_curves/templates/congruent_number_data.html
@@ -259,9 +259,13 @@ <h2>Credit and acknowledgements</h2>
 
 <p>
 The data files were created by Randall L. Rathbun on February 14, 2013
-with updates on May 18, 2014.  Some data was provided by Allan J
-MacLeod, Ralph Buchholz and Brett Wittby, the rest computed by Rathbun using <tt>PARI/GP</tt>
-and <tt>eclib</tt> (in particular <tt>mwrank</tt>).
+with updates on May 18, 2014.  For the curves of rank one, the generators were computed by him using an implementation
+in PARI/GP originally by Robatino of an algorithm in Robatino's 1996 thesis <i>Computation of mock Heegner points
+on modular elliptic curves</i>, following work of Monsky.
+
+Some data was provided by Allan J. MacLeod, and by Ralph Buchholz and
+Brett Wittby, using <tt>Magma</tt>; the rest computed by Rathbun using
+ <tt>PARI/GP</tt> and <tt>eclib</tt> (in particular <tt>mwrank</tt>).
 </p>
 
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