diff --git a/bibliography.bib b/bibliography.bib
index 20c37ad..6dda3b6 100644
--- a/bibliography.bib
+++ b/bibliography.bib
@@ -108,3 +108,22 @@
     publisher = {IEEE Computer Society},
     address = {Los Alamitos, CA, USA},
 }
+
+@article{Gartner:1999:FFD:311531.311532,
+     author = {G\"{a}rtner, Felix C.},
+     title = {Fundamentals of fault-tolerant distributed computing in asynchronous environments},
+     journal = {ACM Comput. Surv.},
+     volume = {31},
+     issue = {1},
+     month = {March},
+     year = {1999},
+     issn = {0360-0300},
+     pages = {1--26},
+     numpages = {26},
+     url = {http://doi.acm.org/10.1145/311531.311532},
+     doi = {http://doi.acm.org/10.1145/311531.311532},
+     acmid = {311532},
+     publisher = {ACM},
+     address = {New York, NY, USA},
+     keywords = {agreement problem, asynchronous system, consensus problem, failure correction, failure detection, fault models, fault tolerance, liveness, message passing, possibility detection, predicate detection, redundancy, safety},
+}