Update README.md

README.md

@@ -1,5 +1,5 @@
 ---
-license: gpl-3.0
+license: apache-2.0
 task_ids:
 - natural-language-inference
 task_categories:
@@ -8,4 +8,15 @@ language:
 - en
 ---
 Natural language inference using attempto controlled english 
-Paper to come
+Paper to come
+
+```
+@inproceedings{fuchs2012first,
+  title={First-order reasoning for attempto controlled english},
+  author={Fuchs, Norbert E},
+  booktitle={Controlled Natural Language: Second International Workshop, CNL 2010, Marettimo Island, Italy, September 13-15, 2010. Revised Papers 2},
+  pages={73--94},
+  year={2012},
+  organization={Springer}
+}
+```