Add references for step-83.

diff --git a/doc/doxygen/references.bib b/doc/doxygen/references.bib
index ebb2b052724b3a404841774f0569bdf6b2350f5a..f4425709e181aa80c741c40ddc98e42f84401566 100644 (file)
--- a/doc/doxygen/references.bib
+++ b/doc/doxygen/references.bib
@@ -1660,6 +1660,41 @@
   journal = {{IMA} Journal of Numerical Analysis}
 }
 
+
+% ------------------------------------
+% Step 83
+% ------------------------------------
+
+
+@article{Young1974,
+  doi = {10.1145/361147.361115},
+  url = {https://doi.org/10.1145/361147.361115},
+  year = {1974},
+  month = sep,
+  publisher = {Association for Computing Machinery ({ACM})},
+  volume = {17},
+  number = {9},
+  pages = {530--531},
+  author = {John W. Young},
+  title = {A first order approximation to the optimum checkpoint interval},
+  journal = {Communications of the {ACM}}
+}
+
+
+@article{Daly2006,
+  doi = {10.1016/j.future.2004.11.016},
+  url = {https://doi.org/10.1016/j.future.2004.11.016},
+  year = {2006},
+  month = feb,
+  publisher = {Elsevier {BV}},
+  volume = {22},
+  number = {3},
+  pages = {303--312},
+  author = {J.T. Daly},
+  title = {A higher order estimate of the optimum checkpoint interval for restart dumps},
+  journal = {Future Generation Computer Systems}
+}
+
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